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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Public Health</journal-id>
<journal-title>Frontiers in Public Health</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Public Health</abbrev-journal-title>
<issn pub-type="epub">2296-2565</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3389/fpubh.2025.1519430</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Public Health</subject>
<subj-group>
<subject>Original Research</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Examining the dualistic model of passion in addiction recovery</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes">
<name><surname>Lewis</surname> <given-names>Lauren E.</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<xref ref-type="corresp" rid="c001"><sup>&#x002A;</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/2882079/overview"/>
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<role content-type="https://credit.niso.org/contributor-roles/data-curation/"/>
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</contrib>
<contrib contrib-type="author">
<name><surname>Mills</surname> <given-names>Devin J.</given-names></name>
<xref ref-type="aff" rid="aff2"><sup>2</sup></xref>
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</contrib>
<contrib contrib-type="author">
<name><surname>Bergman</surname> <given-names>Brandon G.</given-names></name>
<xref ref-type="aff" rid="aff3"><sup>3</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/1872715/overview"/>
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<contrib contrib-type="author">
<name><surname>Kimball</surname> <given-names>Thomas G.</given-names></name>
<xref ref-type="aff" rid="aff2"><sup>2</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/2883992/overview"/>
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<contrib contrib-type="author">
<name><surname>Gerber</surname> <given-names>William</given-names></name>
<xref ref-type="aff" rid="aff2"><sup>2</sup></xref>
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<aff id="aff1"><sup>1</sup><institution>School of Medicine, University of Connecticut</institution>, <addr-line>Farmington, CT</addr-line>, <country>United States</country></aff>
<aff id="aff2"><sup>2</sup><institution>Community, Family, and Addiction Sciences, Texas Tech University</institution>, <addr-line>Lubbock, TX</addr-line>, <country>United States</country></aff>
<aff id="aff3"><sup>3</sup><institution>Recovery Research Institute, Massachusetts General Hospital &#x0026; Harvard Medical School</institution>, <addr-line>Boston, MA</addr-line>, <country>United States</country></aff>
<author-notes>
<fn fn-type="edited-by" id="fn0001">
<p>Edited by: George Unick, University of Maryland, United States</p></fn>
<fn fn-type="edited-by" id="fn0002">
<p>Reviewed by: Ion Copoeru, Babe&#x0219;-Bolyai University, Romania</p>
<p>Farzin Bagheri Sheykhangafshe, Tarbiat Modares University, Iran</p></fn>
<corresp id="c001">&#x002A;Correspondence: Lauren E. Lewis, <email>lalewis@uchc.edu</email></corresp>
</author-notes>
<pub-date pub-type="epub">
<day>26</day>
<month>02</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="collection">
<year>2025</year>
</pub-date>
<volume>13</volume>
<elocation-id>1519430</elocation-id>
<history>
<date date-type="received">
<day>29</day>
<month>10</month>
<year>2024</year>
</date>
<date date-type="accepted">
<day>10</day>
<month>02</month>
<year>2025</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#x00A9; 2025 Lewis, Mills, Bergman, Kimball and Gerber.</copyright-statement>
<copyright-year>2025</copyright-year>
<copyright-holder>Lewis, Mills, Bergman, Kimball and Gerber</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/">
<p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</p>
</license>
</permissions>
<abstract>
<sec>
<title>Introduction</title>
<p>Addiction recovery can be conceptualized as multidimensional changes to health and wellness including changes in substance use, physical and mental health, and social relationships. These outcomes are often measured through recovery capital which recognizes the various resources, both internal and external, that one may use to enhance their recovery. Internal and external resources can also be accumulated by engaging in an activity an individual is passionate about, explained by the dualistic model of passion (DMP) as enhancing mental and spiritual well-being, health, and personal growth, thereby fostering positive emotions, community involvement, deeper relationships, and heightened performance across various life domains. Evidence indicates that both RC and the DMP contribute to improved health outcomes including life satisfaction and well-being; however, the DMP has not yet been applied to addiction recovery science. The current study aimed to contribute to the growing body of research on addiction recovery by exploring the way passion may influence recovery outcomes. Further, the study investigated how the differences in passion type [e.g., harmonious (HP) and obsessive (OP)] impacted RC.</p>
</sec>
<sec>
<title>Methods</title>
<p>Participants for the study (<italic>N</italic>&#x202F;=&#x202F;346; <italic>M</italic><sub>age</sub>&#x202F;=&#x202F;42.1; 53.2% Male) included individuals who self-reported being in recovery from alcohol and/or drugs and completed an online survey through Amazon&#x2019;s Mechanical Turk platform.</p>
</sec>
<sec>
<title>Results</title>
<p>A significant bivariate correlation was found between HP and RC (<italic>r</italic>&#x202F;=&#x202F;0.42, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001), and mean comparisons showed significant differences for individuals endorsing HP as they scored higher on a measure of RC (<italic>M</italic>&#x202F;=&#x202F;4.69) than did their peers endorsing OP (<italic>M</italic>&#x202F;=&#x202F;4.26). Finally, a regression analysis found that HP predicted RC (<italic>B</italic>&#x202F;=&#x202F;0.19, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001), even when time in recovery and mental health variables such as depression and anxiety were included in the model.</p>
</sec>
<sec>
<title>Discussion</title>
<p>This study offers novel evidence for an association between the DMP and recovery outcomes warranting future research.</p>
</sec>
</abstract>
<kwd-group>
<kwd>addiction recovery</kwd>
<kwd>substance use</kwd>
<kwd>dualistic model of passion (DMP)</kwd>
<kwd>passion</kwd>
<kwd>recovery capital</kwd>
</kwd-group>
<contract-sponsor id="cn1">National Institute on Drug Abuse<named-content content-type="fundref-id">10.13039/100000026</named-content></contract-sponsor>
<contract-sponsor id="cn2">National Institutes of Health<named-content content-type="fundref-id">10.13039/100000002</named-content></contract-sponsor>
<counts>
<fig-count count="1"/>
<table-count count="5"/>
<equation-count count="0"/>
<ref-count count="38"/>
<page-count count="9"/>
<word-count count="6431"/>
</counts>
<custom-meta-wrap>
<custom-meta>
<meta-name>section-at-acceptance</meta-name>
<meta-value>Substance Use Disorders and Behavioral Addictions</meta-value>
</custom-meta>
</custom-meta-wrap>
</article-meta>
</front>
<body>
<sec sec-type="intro" id="sec1">
<title>Introduction</title>
<p>The National Survey on Drug Use and Health conducted yearly by the Substance Abuse and Mental Health Services Administration (<xref ref-type="bibr" rid="ref1">1</xref>) found that of the 30.5 million adults who ever believed they had a problem with their use of drugs or alcohol, 73.1% considered themselves to be in recovery or recovered from their problem. Historically, recovery research focused on acute outcomes by measuring days abstinent or drinks per day within 1&#x202F;year after treatment (<xref ref-type="bibr" rid="ref2">2</xref>); however, researchers, clinicians, and people with lived experience have recently advocated to expand the way recovery outcomes are defined and measured. To include the wide breadth of transformations undergone by an individual including changes to their substance use as well as their overall health and well-being, current conceptualizations recognize that recovery is a unique and individualized process (<xref ref-type="bibr" rid="ref3 ref4 ref5">3&#x2013;5</xref>). The current paper defines recovery as &#x201C;a process of change through which individuals improve their health and wellness, live a self-directed life, and strive to reach their full potential&#x201D; (<xref ref-type="bibr" rid="ref6">6</xref>).</p>
<p>This new conceptualization of addiction recovery has required a fundamental shift in theory and research related to the ways people achieve wellness and gain control over their health, therefore recovery models and assessments must acknowledge the various pathways and outcomes individuals in recovery may experience. Recovery capital (RC) (<xref ref-type="bibr" rid="ref7">7</xref>, <xref ref-type="bibr" rid="ref8">8</xref>) is a common and comprehensive approach to understanding and measuring recovery from this modern perspective. RC states that the initiation and maintenance of addiction recovery can be better understood by identifying an individual&#x2019;s resources, defined as &#x201C;capital&#x201D; which they accumulate over time. The most current RC model, which will be used in the current paper, identifies the sum of resources found within four domains: social, physical, human, and cultural capital (<xref ref-type="bibr" rid="ref8">8</xref>). These resources include positive outcomes gained in recovery extending beyond abstinence such as feeling supported in social relationships, being satisfied with life, feeling connected to a community, and feeling an enthusiasm for life (<xref ref-type="bibr" rid="ref9">9</xref>). These same outcomes have been found when an individual engages in an important, self-defining activity, known as a passion (<xref ref-type="bibr" rid="ref10">10</xref>).</p>
<p>Passion, as defined by the dualistic model of passion (DMP) is a &#x201C;strong inclination toward a specific object, activity, concept, or person that one loves (or at least strongly likes), highly values, invests time and energy in on a regular basis, and that is part of one&#x2019;s identity&#x201D; [(<xref ref-type="bibr" rid="ref11">11</xref>), p. 33]. When an individual engages in their passion they often experience heightened affect, connection to a social environment, and a strong motivation. Within this model two types of passion exist, harmonious (HP) and obsessive (OP). Individuals who engage in their passion harmoniously are able to participate with openness, flexibility, and mindfulness where they remain in control of the activity without it overpowering their time (<xref ref-type="bibr" rid="ref11">11</xref>). Conversely, OP is driven by an uncontrollable urge, in which their passion is in conflict with other aspects of life and often experience a sense of insecurity, failure, and shame (<xref ref-type="bibr" rid="ref11">11</xref>).</p>
<p>Research on the DMP has long examined the differing results of HP and OP consistently finding that HP leads to adaptive outcomes, whereas OP is associated with maladaptive consequences (<xref ref-type="bibr" rid="ref10">10</xref>, <xref ref-type="bibr" rid="ref12">12</xref>, <xref ref-type="bibr" rid="ref13">13</xref>). A recent meta-analysis conducted by Curran et al. (<xref ref-type="bibr" rid="ref14">14</xref>) highlights these findings through the review of research on the DMP and intrapersonal outcomes (e.g., well-being, cognitive experiences, and motivation). The review found consistent evidence that HP is related to increased well-being, life satisfaction, and vitality, whereas OP is associated with ill-being through negative affect and burnout. These findings have also been underscored in research on passion for using substances (e.g., passion for alcohol use) which reports that OP is related to higher consumption, consequences, and craving, while HP serves as a protective factor (<xref ref-type="bibr" rid="ref15 ref16 ref17 ref18">15&#x2013;18</xref>). While research on the DMP and substance use has started to develop, to date, research has not been published on the effect of passion on addiction recovery. We argue that passion likely plays an important role in the recovery journey, but that its effect is dependent upon the type of passion, offering a potentially useful construct to teach us novel ways to impact recovery.</p>
<p>The current study aims to explore the relationship between RC and the DMP using an online sample of people in recovery from alcohol and/or substance use. Given the consistent evidence that HP contributes to higher well-being, and the contemporary approach to measuring well-being as a key component of the overall changes experienced during recovery, it can be assumed that HP will positively contribute to recovery outcomes. First, we will test the differences between scores of RC and mental health based on individuals endorsing HP versus OP. We hypothesize that those endorsing HP will have higher averages of RC and lower scores on indices of mental health. Second, we will test the differences between those who did not endorse a passion at all (NP), and the HP, OP groups. We hypothesize that the NP and OP group will both report lower RC and higher mental health indices. Third, we will use a regression analysis to test the effects of passion on RC, and we hypothesize that HP will predict higher RC, while OP will contribute to lower levels of RC. Finally, we hypothesize that passion will continue to predict RC even when other related variables are included in the model including time in recovery, mental health, and life satisfaction.</p>
</sec>
<sec sec-type="methods" id="sec2">
<title>Methods</title>
<sec id="sec3">
<title>Procedures</title>
<p>US adults with a minimum 90% approval rating on MTURK were screened for being 18&#x202F;years or older, a U.S. resident, and in recovery from alcohol and/or drugs or having resolved a problem with alcohol and/or drugs. Participants who answered yes to all three questions (<italic>N</italic>&#x202F;=&#x202F;514) were invited to complete a survey on substance use and recovery history, passion, depression, anxiety, life satisfaction and other related variables. Participants were compensated through MTURK for their time completing both surveys. To ensure integrity of the data, the sample was reduced based on the following criteria: (1) Incorrectly responding to two out of three attention check questions, (2) Inconsistent response to the two recovery status questions between the screening and final survey, and (3) completing the survey in five minutes or less (<xref ref-type="bibr" rid="ref38">38</xref>). The total number of participants who completed the survey (<italic>n</italic>&#x202F;=&#x202F;393) were reduced to a final sample (<italic>n</italic>&#x202F;=&#x202F;346) based on these measures.</p>
</sec>
<sec id="sec4">
<title>Participants</title>
<p>The participants (<italic>N</italic>&#x202F;=&#x202F;346) mean age was 42.1&#x202F;years (range: 20&#x2013;75), who were assigned male at birth (53.2%) and Caucasian/white (82.1%) as seen in <xref ref-type="table" rid="tab1">Table 1</xref>. The sample represented individuals in recovery with 80.3% self-identifying as currently being in recovery, and 95.1% reporting that they used to have a problem with drugs and/or alcohol but no longer do. Just over half of the sample (54.6%) reported being in recovery from alcohol only, while 20.5% reported being in recovery from drugs, and 24.9% in recovery from both. Participants who reported having a passion (<italic>n</italic>&#x202F;=&#x202F;245) represented 71% of the sample in line with previous reports of the general population (<xref ref-type="bibr" rid="ref10">10</xref>, <xref ref-type="bibr" rid="ref12">12</xref>).</p>
<table-wrap position="float" id="tab1">
<label>Table 1</label>
<caption>
<p>Sample characteristics (<italic>N</italic>&#x202F;=&#x202F;346).</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th/>
<th align="center" valign="top"><italic>n</italic></th>
<th align="center" valign="top"><italic>%</italic></th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="top">Age</td>
<td align="center" valign="top"><italic>M</italic> =&#x202F;42.1</td>
<td align="center" valign="top"><italic>SD</italic> =&#x202F;12.8</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Sex</td>
</tr>
<tr>
<td align="left" valign="top">Male</td>
<td align="center" valign="top">184</td>
<td align="center" valign="top">53.2</td>
</tr>
<tr>
<td align="left" valign="top">Female</td>
<td align="center" valign="top">162</td>
<td align="center" valign="top">46.8</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Race</td>
</tr>
<tr>
<td align="left" valign="top">Caucasian/white</td>
<td align="center" valign="top">284</td>
<td align="center" valign="top">82.1</td>
</tr>
<tr>
<td align="left" valign="top">Hispanic/Latino</td>
<td align="center" valign="top">26</td>
<td align="center" valign="top">7.5</td>
</tr>
<tr>
<td align="left" valign="top">African American/black</td>
<td align="center" valign="top">39</td>
<td align="center" valign="top">11.3</td>
</tr>
<tr>
<td align="left" valign="top">Asian American/Asian</td>
<td align="center" valign="top">17</td>
<td align="center" valign="top">4.9</td>
</tr>
<tr>
<td align="left" valign="top">American Indian/Native Alaskan</td>
<td align="center" valign="top">9</td>
<td align="center" valign="top">2.6</td>
</tr>
<tr>
<td align="left" valign="top">Native Hawaiian/Pacific Islander</td>
<td align="center" valign="top">2</td>
<td align="center" valign="top">0.6</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Income</td>
</tr>
<tr>
<td align="left" valign="top">Less than $50,000</td>
<td align="center" valign="top">190</td>
<td align="center" valign="top">55</td>
</tr>
<tr>
<td align="left" valign="top">$50,000 to $99,999</td>
<td align="center" valign="top">122</td>
<td align="center" valign="top">35.3</td>
</tr>
<tr>
<td align="left" valign="top">$100,000 or more</td>
<td align="center" valign="top">34</td>
<td align="center" valign="top">9.8</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Current recovery</td>
</tr>
<tr>
<td align="left" valign="top">Alcohol only</td>
<td align="center" valign="top">189</td>
<td align="center" valign="top">54.6</td>
</tr>
<tr>
<td align="left" valign="top">Drugs only</td>
<td align="center" valign="top">71</td>
<td align="center" valign="top">20.5</td>
</tr>
<tr>
<td align="left" valign="top">Both alcohol and drugs</td>
<td align="center" valign="top">86</td>
<td align="center" valign="top">24.9</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Time in recovery<xref ref-type="table-fn" rid="tfn1"><sup>a</sup></xref></td>
</tr>
<tr>
<td align="left" valign="top">&#x003C; 1&#x202F;year</td>
<td align="center" valign="top">97</td>
<td align="center" valign="top">28</td>
</tr>
<tr>
<td align="left" valign="top">1&#x2013;5&#x202F;years</td>
<td align="center" valign="top">130</td>
<td align="center" valign="top">37.6</td>
</tr>
<tr>
<td align="left" valign="top">5&#x2013;10&#x202F;years</td>
<td align="center" valign="top">46</td>
<td align="center" valign="top">13.3</td>
</tr>
<tr>
<td align="left" valign="top">&#x003E; 10&#x202F;years</td>
<td align="center" valign="top">73</td>
<td align="center" valign="top">21.1</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Natural recovery</td>
</tr>
<tr>
<td align="left" valign="top">Yes</td>
<td align="center" valign="top">78</td>
<td align="center" valign="top">22.5</td>
</tr>
<tr>
<td align="left" valign="top">No</td>
<td align="center" valign="top">268</td>
<td align="center" valign="top">77.5</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Mutual-help attendance</td>
</tr>
<tr>
<td align="left" valign="top">Yes</td>
<td align="center" valign="top">115</td>
<td align="center" valign="top">33.2</td>
</tr>
<tr>
<td align="left" valign="top">No</td>
<td align="center" valign="top">231</td>
<td align="center" valign="top">66.8</td>
</tr>
<tr>
<td align="left" valign="top" colspan="3">Recurrence of use in last 6&#x202F;months</td>
</tr>
<tr>
<td align="left" valign="top">Yes</td>
<td align="center" valign="top">131</td>
<td align="center" valign="top">37.9</td>
</tr>
<tr>
<td align="left" valign="top">No</td>
<td align="center" valign="top">215</td>
<td align="center" valign="top">62.1</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn id="tfn1">
<label>a</label>
<p>For individuals in recovery from both alcohol and drugs, shorter duration of recovery is reported.</p>
</fn>
</table-wrap-foot>
</table-wrap>
</sec>
<sec id="sec5">
<title>Measures</title>
<sec id="sec6">
<title>Recovery history</title>
<p>Participants current recovery status was measured with two questions in both the screener and full survey including if they &#x201C;used to have a problem with alcohol and/or drugs but no longer do,&#x201D; and &#x201C;consider themselves to currently be in the process of recovery&#x201D; (<xref ref-type="bibr" rid="ref19">19</xref>). Participants who responded yes to at least one of the questions were included in the final sample. Next, they were asked to identify whether their recovery was related to alcohol and/or drugs with the option to choose both. To assess time in recovery the participants were given seven options ranging from <italic>Less than 6&#x202F;months</italic> to <italic>More than 15&#x202F;years</italic>. For participants who reported varying periods of time in recovery from alcohol and drugs simultaneously, the lowest time was used in final analysis (e.g., Individual is in recovery from alcohol for 5&#x2013;10&#x202F;years, but drugs for 6&#x2013;12&#x202F;months, the final assessment would reflect recovery time as 6&#x2013;12&#x202F;months). Other items assessing recovery history included current substance use, the types of programs or services used to aid in their recovery journey, and any recurrence of use within the last 6&#x202F;months.</p>
</sec>
<sec id="sec7">
<title>Passion</title>
<p>Passion was measured using the 17-item Passion Scale (<xref ref-type="bibr" rid="ref10">10</xref>). Participants were first given a definition of recovery and asked if they had an activity they would define as a passion. Those who answered yes (<italic>n</italic>&#x202F;=&#x202F;245) were asked to identify their passion with an open-ended response. Next, they rated six items assessing HP (e.g., &#x201C;<italic>my activity is well integrated in my life</italic>;&#x201D; <italic>&#x03B1;</italic>&#x202F;=&#x202F;0.80) and OP (e.g., &#x201C;<italic>I have difficulties controlling my urge to do my activity;</italic>&#x201D; &#x03B1;&#x202F;=&#x202F;0.74) along with five items measuring passion criteria (e.g., &#x201C;<italic>This activity is important for me;</italic>&#x201D; &#x03B1;&#x202F;=&#x202F;0.74). The questions are rated on a 7-point Likert scale ranging from <italic>Do not agree at all</italic> (1) to <italic>Very strongly agree</italic> (7). The average score for each subscale was used in the final analysis. Additionally, participants were classified into either HP or OP based on their higher sub-scale z-score for statistical analyses of group comparison (<xref ref-type="bibr" rid="ref20">20</xref>). An additional question was asked in which participants rated how much they believed engaging in their passion supported their recovery rated from <italic>Strongly disagree</italic> (1) to S<italic>trongly agree</italic> (7), to which 69.6% agreed at some level.</p>
</sec>
<sec id="sec8">
<title>Recovery capital</title>
<p>Recovery capital was measured using the Assessment of Recovery Capital (ARC) (<xref ref-type="bibr" rid="ref21">21</xref>). The assessment contains 50 items with a dichotomized response (e.g., yes or no), but the current study utilized a 6-point Likert scale similar to the Brief Assessment of Recovery Capital (BARC-10) (<xref ref-type="bibr" rid="ref9">9</xref>) ranging from <italic>Strongly disagree</italic> (1) to <italic>Strongly agree</italic> (6). Items include a wide variety of statements such as &#x201C;I am currently completely sober,&#x201D; and &#x201C;I feel physically well enough to work.&#x201D; Each participant&#x2019;s average score was used in the final analysis (<italic>&#x03B1;</italic>&#x202F;=&#x202F;0.96).</p>
</sec>
<sec id="sec9">
<title>Mental health</title>
<p>Mental health was assessed using the Patient Health Questionnaire-8 (PHQ-8) (<xref ref-type="bibr" rid="ref22">22</xref>) and the Generalized Anxiety Disorder Assessment (GAD-7) (<xref ref-type="bibr" rid="ref23">23</xref>). Both measures have been found to be consistent and reliable measures of depression and anxiety. The PHQ-8 uses eight items based on the participant&#x2019;s experience of depression criteria (e.g., &#x201C;<italic>Feeling down, depressed, irritable or hopeless&#x201D;</italic>) within the last 2&#x202F;weeks. It is rated on a 4-point Likert scale and the total score is used in analysis (<italic>&#x03B1;</italic>&#x202F;=&#x202F;0.89). The GAD-7 also asks participants to rate how often seven anxiety items (e.g., &#x201C;<italic>Worrying too much about different things&#x201D;</italic>) have affected them in the last 2&#x202F;weeks. The assessment uses a 4-point Likert scale, and the total score was used in the current analysis (&#x03B1;&#x202F;=&#x202F;0.93).</p>
</sec>
<sec id="sec10">
<title>Satisfaction with life</title>
<p>A 5-item assessment of life satisfaction was utilized (SWLS) (<xref ref-type="bibr" rid="ref24">24</xref>) where participants are asked to rate the statements on a scale from (1) <italic>Strongly disagree</italic>, to (7) <italic>Strongly agree</italic>. The items (e.g., &#x201C;<italic>In most ways my life is close to my ideal</italic>&#x201D;) assess overall satisfaction, and the measure has consistently been found to be reliable and valid (&#x03B1;&#x202F;=&#x202F;0.91).</p>
</sec>
</sec>
<sec id="sec11">
<title>Analysis</title>
<p>Initial data preparation was completed using SPSS (Version 29.0). Data analysis including basic descriptive statistics, bivariate correlations, <italic>t</italic>-tests, and analysis of variance (ANOVA) were completed with the final sample (<italic>n</italic>&#x202F;=&#x202F;346). After testing for equal variance revealed that equal variance could not be assumed, the ANOVA analysis included post-hoc tests (e.g., Games-Howell, and Tamhane) to confirm any significant relationships (<xref ref-type="bibr" rid="ref25">25</xref>). Finally, a two-step hierarchical regression analysis was conducted in SPSS only accounting for the sub-sample of individuals who reported having a passion (<italic>n</italic>&#x202F;=&#x202F;245) employing listwise deletion of participants with missing data (<italic>n</italic>&#x202F;=&#x202F;236), to test the effect of passion on recovery capital. Missing data accounted for less than 5% of the total sample, introducing minimal bias with negligible effects on the results (<xref ref-type="bibr" rid="ref26">26</xref>). The first step included the average scores for HP, OP, and RC, and the second step additionally included time in recovery and other measures of well-being including satisfaction with life, depression, and anxiety to further assess the associations (See <xref ref-type="fig" rid="fig1">Figure 1</xref>).</p>
<fig position="float" id="fig1">
<label>Figure 1</label>
<caption>
<p>Standardized model results for hierarchical linear regression.</p>
</caption>
<graphic xlink:href="fpubh-13-1519430-g001.tif"/>
</fig>
</sec>
</sec>
<sec sec-type="results" id="sec12">
<title>Results</title>
<sec id="sec13">
<title>Associations between passion, recovery, and mental health</title>
<p>Preliminary analysis was conducted to estimate associations between the study variables (see <xref ref-type="table" rid="tab2">Table 2</xref>). Bivariate correlations were calculated showing HP was significantly positively correlated with RC, while OP was negatively correlated and non-significant. To test our first hypothesis, <italic>t</italic>-tests were conducted to compare the differences in recovery outcomes for individuals endorsing HP compared to OP and revealed significant differences in RC scores <italic>t</italic> (242)&#x202F;=&#x202F;4.80, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001 (See <xref ref-type="table" rid="tab3">Table 3</xref>). Both bivariate correlations and the <italic>t-tests</italic> confirmed that HP is related to lower depression <italic>t</italic> (242)&#x202F;=&#x202F;5.87, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001 and anxiety <italic>t</italic> (242)&#x202F;=&#x202F;4.37, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001. As hypothesized, individuals in the HP group had significantly higher RC scores than those in the OP group. The HP group also experienced less symptoms of both depression and anxiety indicating that in line with previous research, those engaging in a passion harmoniously may also possess more recovery resources and experience improved mental health than their peers.</p>
<table-wrap position="float" id="tab2">
<label>Table 2</label>
<caption>
<p>Descriptive statistics and bivariate, and partial correlations between study variables.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" valign="top">Variable</th>
<th align="center" valign="top"><italic>M</italic></th>
<th align="center" valign="top"><italic>SD</italic></th>
<th align="center" valign="top">1</th>
<th align="center" valign="top">2</th>
<th align="center" valign="top">3</th>
<th align="center" valign="top">4</th>
<th align="center" valign="top">5</th>
<th align="center" valign="top">6</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="top">1. Recovery capital</td>
<td align="center" valign="top">4.32</td>
<td align="center" valign="top">0.77</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">0.38&#x002A;&#x002A;</td>
<td align="center" valign="top">0.06</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
</tr>
<tr>
<td align="left" valign="top">2. Harmonious passion</td>
<td align="center" valign="top">5.68</td>
<td align="center" valign="top">0.97</td>
<td align="center" valign="top">0.42&#x002A;&#x002A;</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">0.17&#x002A;</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
</tr>
<tr>
<td align="left" valign="top">3. Obsessive passion</td>
<td align="center" valign="top">3.50</td>
<td align="center" valign="top">1.69</td>
<td align="center" valign="top">&#x2212;0.02</td>
<td align="center" valign="top">0.14&#x002A;</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
</tr>
<tr>
<td align="left" valign="top">4. Time in recovery</td>
<td align="center" valign="top">3.78</td>
<td align="center" valign="top">1.88</td>
<td align="center" valign="top">0.21&#x002A;&#x002A;</td>
<td align="center" valign="top">0.07</td>
<td align="center" valign="top">&#x2212;0.06</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
</tr>
<tr>
<td align="left" valign="top">5. Depression</td>
<td align="center" valign="top">7.92</td>
<td align="center" valign="top">5.71</td>
<td align="center" valign="top">&#x2212;0.52&#x002A;&#x002A;</td>
<td align="center" valign="top">&#x2212;0.15&#x002A;</td>
<td align="center" valign="top">0.34&#x002A;&#x002A;</td>
<td align="center" valign="top">&#x2212;0.20&#x002A;&#x002A;</td>
<td align="center" valign="top">___</td>
<td align="center" valign="top">___</td>
</tr>
<tr>
<td align="left" valign="top">6. Anxiety</td>
<td align="center" valign="top">7.13</td>
<td align="center" valign="top">5.90</td>
<td align="center" valign="top">&#x2212;0.55&#x002A;&#x002A;</td>
<td align="center" valign="top">&#x2212;0.11</td>
<td align="center" valign="top">0.28&#x002A;&#x002A;</td>
<td align="center" valign="top">&#x2212;0.13&#x002A;</td>
<td align="center" valign="top">0.77&#x002A;&#x002A;</td>
<td/>
</tr>
<tr>
<td align="left" valign="top">7. Life satisfaction</td>
<td align="center" valign="top">19.58</td>
<td align="center" valign="top">7.97</td>
<td align="center" valign="top">0.70&#x002A;&#x002A;</td>
<td align="center" valign="top">0.20&#x002A;&#x002A;</td>
<td align="center" valign="top">0.09</td>
<td align="center" valign="top">0.09</td>
<td align="center" valign="top">&#x2212;0.36&#x002A;&#x002A;</td>
<td align="center" valign="top">&#x2212;0.35&#x002A;&#x002A;</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p><italic>&#x002A;p</italic>&#x202F;&#x003C;&#x202F;0.05. &#x002A;&#x002A;<italic>p&#x202F;&#x003C;&#x202F;0</italic>.01. Upper diagonal represents partial correlations after controlling for variables 4&#x2013;7. Time in recovery based on ordinal variable indicating average time in recovery is between 2 to 5&#x202F;years.</p>
</table-wrap-foot>
</table-wrap>
<table-wrap position="float" id="tab3">
<label>Table 3</label>
<caption>
<p>Results of <italic>t</italic>-tests when comparing study variables across passion type.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" valign="top">Variable</th>
<th align="center" valign="top">HP<xref ref-type="table-fn" rid="tfn2"><sup>a</sup></xref></th>
<th align="center" valign="top">OP<xref ref-type="table-fn" rid="tfn2"><sup>a</sup></xref></th>
<th/>
<th/>
<th/>
</tr>
<tr>
<th/>
<th align="center" valign="middle"><italic>M (SD)</italic></th>
<th align="center" valign="middle"><italic>M (SD)</italic></th>
<th align="center" valign="middle"><italic>t</italic></th>
<th align="center" valign="middle"><italic>p</italic></th>
<th align="center" valign="middle"><italic>Cohen&#x2019;s d</italic></th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="top">Recovery capital</td>
<td align="center" valign="middle">4.69 (0.67)</td>
<td align="center" valign="middle">4.26 (0.71)</td>
<td align="center" valign="middle">4.80</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="center" valign="middle">0.61</td>
</tr>
<tr>
<td align="left" valign="top">Time in recovery</td>
<td align="center" valign="middle">4.15 (1.92)</td>
<td align="center" valign="middle">3.73 (1.75)</td>
<td align="center" valign="middle">1.79</td>
<td align="center" valign="middle">0.07</td>
<td align="center" valign="middle">0.23</td>
</tr>
<tr>
<td align="left" valign="top">Depression</td>
<td align="center" valign="middle">5.42 (4.80)</td>
<td align="center" valign="middle">9.42 (5.81)</td>
<td align="center" valign="middle">5.87</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="center" valign="middle">0.75</td>
</tr>
<tr>
<td align="left" valign="top">Anxiety</td>
<td align="center" valign="middle">4.99 (5.59)</td>
<td align="center" valign="middle">8.17 (5.59)</td>
<td align="center" valign="middle">4.37</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="center" valign="middle">0.57</td>
</tr>
<tr>
<td align="left" valign="top">Life satisfaction</td>
<td align="center" valign="middle">22.04 (7.63)</td>
<td align="center" valign="middle">20.27 (7.58)</td>
<td align="center" valign="middle">1.82</td>
<td align="center" valign="middle">0.07</td>
<td align="center" valign="middle">0.23</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn id="tfn2">
<label>a</label>
<p>Based on Z-score categorizations.</p>
</fn>
</table-wrap-foot>
</table-wrap>
<p>To test our second research questions, further mean comparisons explored the differences between HP (<italic>n</italic>&#x202F;=&#x202F;120), OP (<italic>n</italic>&#x202F;=&#x202F;124), and individuals who did not indicate a passion (NP; <italic>n</italic>&#x202F;=&#x202F;99) using ANOVA procedures (see <xref ref-type="table" rid="tab4">Table 4</xref>). Results show that individuals endorsing HP have significantly higher RC than those without a passion and those endorsing OP <italic>F</italic> (2, 343)&#x202F;=&#x202F;31.01, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001, in line with our hypothesis. Individuals endorsing OP did have significantly more RC than those who did not have a passion at all. These findings point to the fact that engaging in a passion at all may contribute positively to recovery resources, while engaging in the passion harmoniously offers the greatest benefit. Additionally, HP was significantly lower than OP and NP for both depression <italic>F</italic> (2, 343)&#x202F;=&#x202F;19.53, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001 and anxiety <italic>F</italic> (2, 331)&#x202F;=&#x202F;12.79, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001.Lastly, satisfaction with life scores <italic>F</italic> (2, 341)&#x202F;=&#x202F;19.79, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001 were highest for those endorsing HP and significantly different from NP, but not OP. These findings offer preliminary evidence for the differences between HP and OP while also adding evidence for the similarities between OP and non-passionate individuals.</p>
<table-wrap position="float" id="tab4">
<label>Table 4</label>
<caption>
<p>Means, standard deviations, and one-way ANOVA statistics for study variables.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th/>
<th align="center" valign="top">NP (<italic>n</italic>&#x202F;=&#x202F;101)</th>
<th align="center" valign="top">HP (<italic>n</italic>&#x202F;=&#x202F;120)</th>
<th align="center" valign="top">OP (<italic>n</italic>&#x202F;=&#x202F;125)</th>
<th/>
<th/>
<th/>
</tr>
<tr>
<th/>
<th align="center" valign="top"><italic>M (SD)</italic></th>
<th align="center" valign="top"><italic>M (SD)</italic></th>
<th align="center" valign="top"><italic>M (SD)</italic></th>
<th align="center" valign="top"><italic>F</italic>(2,343)</th>
<th align="center" valign="top"><italic>&#x03B7;<sup>2</sup></italic></th>
<th align="center" valign="top">Significant differences (<italic>post hoc</italic>)</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="top">Recovery capital</td>
<td align="center" valign="middle">3.93 (0.75)</td>
<td align="center" valign="middle">4.69 (0.67)</td>
<td align="center" valign="middle">4.26 (0.71)</td>
<td align="center" valign="middle">31.01&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">0.15</td>
<td align="center" valign="middle">HP&#x202F;&#x003E;&#x202F;NP, OP; OP &#x003E; NP</td>
</tr>
<tr>
<td align="left" valign="top">Time in recovery</td>
<td align="center" valign="middle">3.41 (1.92)</td>
<td align="center" valign="middle">4.15 (1.92)</td>
<td align="center" valign="middle">3.72 (1.75)</td>
<td align="center" valign="middle">4.34&#x002A;</td>
<td align="center" valign="middle">0.02</td>
<td align="center" valign="middle">HP&#x202F;&#x003E;&#x202F;NP</td>
</tr>
<tr>
<td align="left" valign="top">Depression</td>
<td align="center" valign="middle">9.03 (5.63)</td>
<td align="center" valign="middle">5.42 (4.80)</td>
<td align="center" valign="middle">9.42 (5.81)</td>
<td align="center" valign="middle">19.53&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">0.10</td>
<td align="center" valign="middle">HP&#x202F;&#x003C;&#x202F;NP, OP</td>
</tr>
<tr>
<td align="left" valign="top">Anxiety</td>
<td align="center" valign="middle">8.44 (5.96)</td>
<td align="center" valign="middle">4.99 (5.59)</td>
<td align="center" valign="middle">8.17 (5.59)</td>
<td align="center" valign="middle">12.79&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">0.07</td>
<td align="center" valign="middle">HP&#x202F;&#x003C;&#x202F;NP, OP</td>
</tr>
<tr>
<td align="left" valign="top">Life satisfaction</td>
<td align="center" valign="middle">15.71 (7.46)</td>
<td align="center" valign="middle">22.04 (7.63)</td>
<td align="center" valign="middle">20.27 (7.58)</td>
<td align="center" valign="middle">19.79&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">0.10</td>
<td align="center" valign="middle">NP&#x202F;&#x003C;&#x202F;HP, OP</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p><italic>&#x002A;p</italic>&#x202F;&#x003C;&#x202F;0.05. &#x002A;&#x002A;<italic>p</italic>&#x202F;&#x003C;&#x202F;0.01. &#x002A;&#x002A;&#x002A;<italic>p</italic>&#x202F;&#x003C;&#x202F;0.001. ANOVA, Analysis of Variance; NP, Non-passionate; HP, Harmoniously passionate; OP, Obsessively passionate. Games-Howell tests run <italic>post hoc</italic>.</p>
</table-wrap-foot>
</table-wrap>
</sec>
<sec id="sec14">
<title>Regression analysis</title>
<p>To test the final research question, a hierarchical linear regression analysis first tested the hypothesis that passion type would predict RC and was found to be significant <italic>F</italic> (2,233)&#x202F;=&#x202F;24.18, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001 accounting for 17% of the variance in recovery capital averages (see <xref ref-type="table" rid="tab5">Table 5</xref>). The results revealed a significant relationship between HP and the ARC (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.42, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001), however, the association between OP and the ARC was not significant (<italic>&#x03B2;</italic>&#x202F;=&#x202F;&#x2212;0.07, <italic>p</italic>&#x202F;=&#x202F;0.246). These findings are only partially aligned with our hypotheses, as we believed both HP and OP would have a significant relationship to RC. The data suggests that while passion type does play a role in the development of RC, HP has greater impact than OP. While we hypothesized that OP would undermine RC, the results indicate that OP is unlikely to contribute either positively or negatively to recovery resources.</p>
<table-wrap position="float" id="tab5">
<label>Table 5</label>
<caption>
<p>Regression analyses testing passion type on recovery capital with and without covariates.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" valign="top">Variable</th>
<th align="center" valign="top"><italic>B</italic></th>
<th align="center" valign="top">95% CI for <italic>B</italic></th>
<th align="center" valign="top"><italic>SE B</italic></th>
<th align="center" valign="top">&#x03B2;</th>
<th align="center" valign="top"><italic>R</italic><sup>2</sup></th>
<th align="center" valign="top"><italic>&#x2206;R</italic><sup>2</sup></th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle">Step 1</td>
<td/>
<td/>
<td/>
<td/>
<td align="center" valign="middle">0.17</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Constant</td>
<td align="center" valign="middle">2.81&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">[2.29, 3.32]</td>
<td align="center" valign="middle">0.26</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">HP</td>
<td align="center" valign="middle">0.31&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">[0.22, 0.40]</td>
<td align="center" valign="middle">0.04</td>
<td align="center" valign="middle">0.42&#x002A;&#x002A;&#x002A;</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">OP</td>
<td align="center" valign="middle">&#x2212;0.03</td>
<td align="center" valign="middle">[&#x2212;0.08, 0.02]</td>
<td align="center" valign="middle">0.03</td>
<td align="center" valign="middle">&#x2212;0.07</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Step 2</td>
<td/>
<td/>
<td/>
<td/>
<td align="center" valign="middle">0.63</td>
<td align="center" valign="middle">0.46&#x002A;&#x002A;&#x002A;</td>
</tr>
<tr>
<td align="left" valign="middle">Constant</td>
<td align="center" valign="middle">2.53&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">[2.11, 2.94]</td>
<td align="center" valign="middle">0.21</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">HP</td>
<td align="center" valign="middle">0.19&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">[0.13, 0.26]</td>
<td align="center" valign="middle">0.03</td>
<td align="center" valign="middle">0.26&#x002A;&#x002A;&#x002A;</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">OP</td>
<td align="center" valign="middle">&#x2212;0.00</td>
<td align="center" valign="middle">[&#x2212;0.04, 0.04]</td>
<td align="center" valign="middle">0.02</td>
<td align="center" valign="middle">&#x2212;0.00</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Time in Recovery</td>
<td align="center" valign="middle">0.03&#x002A;</td>
<td align="center" valign="middle">[0.00, 0.07]</td>
<td align="center" valign="middle">0.02</td>
<td align="center" valign="middle">0.09&#x002A;</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Depression</td>
<td align="center" valign="middle">&#x2212;0.01</td>
<td align="center" valign="middle">[&#x2212;0.03, 0.01]</td>
<td align="center" valign="middle">0.01</td>
<td align="center" valign="middle">&#x2212;0.10</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Anxiety</td>
<td align="center" valign="middle">&#x2212;0.03&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">[&#x2212;0.05, &#x2212;0.02]</td>
<td align="center" valign="middle">0.01</td>
<td align="center" valign="middle">&#x2212;0.26&#x002A;&#x002A;&#x002A;</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Life Satisfaction</td>
<td align="center" valign="middle">0.05&#x002A;&#x002A;&#x002A;</td>
<td align="center" valign="middle">[0.04, 0.06]</td>
<td align="center" valign="middle">0.00</td>
<td align="center" valign="middle">0.50&#x002A;&#x002A;&#x002A;</td>
<td/>
<td/>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p><italic>&#x002A;p</italic>&#x202F;&#x003C;&#x202F;0.05. &#x002A;&#x002A;<italic>p</italic>&#x202F;&#x003C;&#x202F;0.01. &#x002A;&#x002A;&#x002A;<italic>p</italic>&#x202F;&#x003C;&#x202F;0.001.</p>
</table-wrap-foot>
</table-wrap>
<p>The second step of the hierarchical model tested the final hypothesis that passion would continue to contribute to RC above and beyond other related variables and was significant <italic>F</italic> (6,229)&#x202F;=&#x202F;64.69, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001 accounting for 63% of the variance (see <xref ref-type="table" rid="tab5">Table 5</xref>). The results indicated a significant positive association between RC and HP (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.26, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001), time in recovery (&#x03B2;&#x202F;=&#x202F;0.09, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.05), and satisfaction with life (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.50, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001) along with a significant negative association between anxiety and RC (<italic>&#x03B2;</italic>&#x202F;=&#x202F;&#x2212;0.26, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001). The final model confirmed that while passion plays a role in the development of RC, there are other variables that need to remain a consideration to best understand recovery outcomes.</p>
</sec>
</sec>
<sec sec-type="discussion" id="sec15">
<title>Discussion</title>
<p>Previous literature on the DMP has explored the effect of passion type, both harmonious and obsessive, on health behaviors including exercise and substance use, but has yet to apply it to addiction recovery Utilizing an online sample of adults in recovery, the current study aimed to test the association between passion type and recovery capital. We hypothesized that HP would be related to higher RC and contribute to RC over and above other related variables such as time in recovery, depression, anxiety, and satisfaction with life, expecting OP to reveal a converse relationship. Our hypotheses were partially supported by the data, finding that while there are significant differences in RC based on grouping individuals into HP engagement versus OP engagement, when estimating RC with the averages of HP and OP, only HP had a significant effect. This novel approach to understanding passion and recovery outcomes offers preliminary evidence for the relationship between HP and RC but leaves questions about how OP influences recovery.</p>
<p>Mean comparisons confirmed the association between passion and RC as individuals endorsing HP had significantly higher RC scores, lower depression, and reduced anxiety when compared to their peers endorsing OP and those without a passion. While these findings build upon previous research on the DMP and mental wellness, they add a novel approach to recovery literature. Harmonious engagement in a passion includes an autonomous internalization of the activity, high levels of persistence, self-growth, and an openness to experience the world in a mindful manner (<xref ref-type="bibr" rid="ref10">10</xref>). The current study offers evidence that those qualities may be beneficial to individuals in recovery by amplifying positive outcomes (e.g., higher RC) compared to those who engage in OP which is based on rigid engagement in an enjoyable activity. The findings also highlight the differences between those who do not engage in a passion at all, as those individuals experienced significantly lower RC than both the HP and OP groups. This is evidence for the benefits of passionate engagement overall, while also recognizing that HP is related to the most adaptive outcomes. This finding is made evident by our regression results which continued to show that even when including time in recovery, mental health, and life satisfaction variables, HP is a significant predictor of RC.</p>
<p>Previous literature on passion has reported that the type of passion based on an uncontrollable urge to persistently engage in a passion (OP) has negative outcomes for individuals including conflict with other activities they enjoy, relationship distress, and negative affect (<xref ref-type="bibr" rid="ref11">11</xref>). As such, we hypothesized that OP would negatively impact RC, however, our hypothesis was not supported by the data. It is possible, based on the result that those who did not engage in a passion at all had the lowest amount of RC, that engaging in a passion, even if it is obsessively, is still contributing to the resources an individual in recovery has. These resources include having an important activity in their life, feeling like part of a community, and feeling fulfilled in life, all components of passion that one may feel when they are engaged in the activity they enjoy. So, while research on OP has shown negative long-term effects on health and well-being, it is possible those were not captured in our cross-sectional analysis.</p>
<p>Previous research has explored concepts with similar components to passion such as the literature on adolescence which shows that time spent in pro-social activities (e.g., school clubs, performing arts) reduces subsequent risky substance use (<xref ref-type="bibr" rid="ref27">27</xref>, <xref ref-type="bibr" rid="ref28">28</xref>) and increases positive development of pro-social group norms. Qualitative research on recovery also found that emerging adults in Norway believed meaningful activities in their communities promoted purpose and aided in building connections with others &#x201C;introducing positive experiences and joy to the recovery process&#x201D; (<xref ref-type="bibr" rid="ref29">29</xref>). Unlike pro-social, substance-free activities, the DMP recognizes engagement in an activity that the individual has chosen to engage in persistently and has integrated into their personality, adding a level of motivation and commitment that is not found in the drug-free activities researched previously. Additionally, as reported by Hardy et al. (<xref ref-type="bibr" rid="ref30">30</xref>) autonomous motivation, like that found in HP, is a key factor in pro-social engagement and health promotive behaviors.</p>
<p>Recovery research has explored how discovering meaning, and purpose can play a central role in the recovery process, similar to the outcomes found within the DMP literature. White (<xref ref-type="bibr" rid="ref31">31</xref>) described the process of finding meaning and purpose as linking the past, present and future of one&#x2019;s life which can be a form of recovery capital. In line with this research, studies have found that engagement in meaningful activities (e.g., work, volunteering) while in recovery contributes to recovery outcomes through the development of purpose, community engagement, and changes to one&#x2019;s identity (<xref ref-type="bibr" rid="ref32 ref33 ref34">32&#x2013;34</xref>). Similar findings have been shown with the DMP, where passionate engagement, especially harmoniously, contributes to high levels of self-growth, social connection, and identity integration. The difference, however, is that research on meaningful activities does not always focus on activities that are motivating, self-defining, and of high value. While the current analyses did not account for the unique contribution of pro-social activities and purpose, future research may seek to test the similarities and differences found between them and passion to understand how passion accounts for distinct changes in recovery capital and other recovery outcomes.</p>
<p>The preliminary findings offer potential clinical implications including potential interventions aimed at assessing passion type and then leveraging passion to enhance recovery. Given that passions are present for 75&#x2013;84% of the general population (<xref ref-type="bibr" rid="ref11">11</xref>, <xref ref-type="bibr" rid="ref12">12</xref>), clinicians may be able to capitalize on the motivation, dedication, and identity integration already taking place in the client&#x2019;s life. Clinicians could assess the presence of a passion in their client&#x2019;s life when collaborating on clinical goals, and work to reignite an old passion or find a new passion by discussing an activity that the client loves to do and encouraging engagement. This passionate engagement can exist within their recovery to build personal skills, bring about positive affect, and connect with pro-social groups in the community. Using the DMP as another tool to build RC and increase wellness adds depth and variety to the field and may allow for many future research questions to be answered.</p>
<sec id="sec16">
<title>Limitations and future research</title>
<p>While the findings of this study offer promise to further evaluation of passion and recovery, it is not without limitations. The participants of this study are limited, and homogeneous in race and ethnicity (82% Caucasian) which does not allow for generalizability of the findings to more diverse populations. Similarly, the sample was recruited through an online data crowdsourcing platform (MTURK), which provides the benefit of finding participants throughout the U.S. but is also limited to individuals with regular time and access to such methods. Online platforms such as Amazon&#x2019;s MTURK have been criticized for the potential vulnerability to web robots (bots), socially desirable responses, and self-misrepresentation which we recognize is a limitation of the current study design. Nonetheless, research has shown that when proper steps are taken to ensure data integrity, as has been done in the current study, the risks are similar to other methods of data collection (<xref ref-type="bibr" rid="ref35 ref36 ref37">35&#x2013;37</xref>). Finally, we acknowledge that the study utilized a cross-sectional design and self-report measures, which limits our ability to draw causal inferences.</p>
<p>The field of passion and addiction recovery remains open to studies that implement various study designs, methods, and analysis. As such, future research should continue to explore the associations and potential implications of passion as a way of fostering recovery with larger and more diverse samples. Additionally, longitudinal study designs may be able to discern the specific effects of both HP and OP on recovery. The potential for clinical and policy implications also remains unclear, specifically what interventions can be used to assess and implement harmonious engagement for people in recovery. Therefore, future research should aim to examine these possibilities.</p>
</sec>
</sec>
<sec sec-type="conclusions" id="sec17">
<title>Conclusion</title>
<p>This study presented a novel approach to addiction recovery research by examining the association between general passions, as defined by Vallerand&#x2019;s DMP, and recovery outcomes. Our findings show that harmoniously passionate engagement has a positive relationship with recovery and satisfaction with life, while maintaining a negative relationship to negative mental health outcomes. These findings provide support for passion as a health promotive behavior that allows individuals to have an autonomous relationship with their health. As such, passion should remain a focus of future research examining the experience of addiction recovery.</p>
</sec>
</body>
<back>
<sec sec-type="data-availability" id="sec18">
<title>Data availability statement</title>
<p>The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation.</p>
</sec>
<sec sec-type="ethics-statement" id="sec19">
<title>Ethics statement</title>
<p>The studies involving humans were approved by Texas Tech University Institutional Review Board. The studies were conducted in accordance with the local legislation and institutional requirements. The participants provided their written informed consent to participate in this study.</p>
</sec>
<sec sec-type="author-contributions" id="sec20">
<title>Author contributions</title>
<p>LL: Conceptualization, Data curation, Formal analysis, Methodology, Project administration, Visualization, Writing &#x2013; original draft, Writing &#x2013; review &#x0026; editing. DM: Conceptualization, Data curation, Methodology, Project administration, Writing &#x2013; review &#x0026; editing, Funding acquisition. BB: Conceptualization, Writing &#x2013; review &#x0026; editing. TK: Conceptualization, Writing &#x2013; review &#x0026; editing. WG: Conceptualization, Writing &#x2013; review &#x0026; editing.</p>
</sec>
<sec sec-type="funding-information" id="sec21">
<title>Funding</title>
<p>The author(s) declare that financial support was received for the research, authorship, and/or publication of this article. Research reported in this publication was supported by the National Institute on Drug Abuse of the National Institutes of Health under award number R24DA057632. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.</p>
</sec>
<sec sec-type="COI-statement" id="sec22">
<title>Conflict of interest</title>
<p>The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</p>
</sec>
<sec sec-type="ai-statement" id="sec23">
<title>Generative AI statement</title>
<p>The authors declare that no Gen AI was used in the creation of this manuscript.</p>
</sec>
<sec sec-type="disclaimer" id="sec24">
<title>Publisher&#x2019;s note</title>
<p>All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.</p>
</sec>
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