Rui Braga , Divo Faustino , Maria João Faria , Miguel M. Gonçalves , Julian Rubel , João Tiago Oliveira
{"title":"The use of ecological momentary assessment methods and designs in the context of obsessive-compulsive disorder: A systematic review","authors":"Rui Braga , Divo Faustino , Maria João Faria , Miguel M. Gonçalves , Julian Rubel , João Tiago Oliveira","doi":"10.1016/j.jocrd.2025.100952","DOIUrl":"10.1016/j.jocrd.2025.100952","url":null,"abstract":"<div><h3>Background</h3><div>Ecological momentary assessment (EMA) is becoming an increasingly prevalent methodology in the field of obsessive-compulsive disorder (OCD) research, offering a means of capturing symptom fluctuations in real-time. Although its flexibility allows it to be adapted to a wide range of study objectives, there is currently no comprehensive study of EMA designs in OCD research.</div></div><div><h3>Methods</h3><div>A systematic search identified 34 studies that employed EMA with patients diagnosed with OCD. Data were extracted on the study objectives, sampling schedules, data collection platforms, response scales, and variables assessed. Items content was subjected to qualitative analysis to categorize the theme assessed.</div></div><div><h3>Results</h3><div>There was considerable variation in the studies’ designs. The mean duration of data collection varied from one to seven days, with an average of four daily assessments. A total of 374 items were extracted, and 12 themes were identified. The most frequent item themes were related to OCD symptoms (49.7 %) and mood/emotions (27 %). The platforms used included digital devices (35.3 %) and traditional pen-and-paper methods (58.8 %). Response rates, reported in only 32.4 % of studies, averaged 74.2 %, while dropout rates averaged 24.8 %. The variability of the methods underlined the adaptability of EMA, but also highlighted standardization challenges.</div></div><div><h3>Conclusions</h3><div>Item themes related to OCD symptoms and mood were dominant, reflecting the focus of EMA on capturing dynamic processes. Summarising the methodological trends identified in this review provides a foundation for improving design and standardization in future EMA-based OCD research.</div></div><div><h3>Systematic review registration</h3><div>[CRD42023406887].</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100952"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Celina L. Müller , Lena Jelinek , Jakob Fink-Lamotte , Jakob Scheunemann , Dean McKay , Jonathan S. Abramowitz , Amitai Abramovitch , Barbara Cludius
{"title":"Four questions for clarity: A first investigation of the German version of the OCI-4 as an ultra-brief screening tool for Obsessive-Compulsive Disorder","authors":"Celina L. Müller , Lena Jelinek , Jakob Fink-Lamotte , Jakob Scheunemann , Dean McKay , Jonathan S. Abramowitz , Amitai Abramovitch , Barbara Cludius","doi":"10.1016/j.jocrd.2025.100953","DOIUrl":"10.1016/j.jocrd.2025.100953","url":null,"abstract":"<div><h3>Background</h3><div>Obsessive-Compulsive Disorder (OCD) is a prevalent and debilitating condition that is frequently under- or misdiagnosed in clinical practice, leading to significant delays between symptom onset and accurate diagnosis. To improve the diagnostic process for individuals with OCD, there is an urgent need for screening instruments that are both syndromally valid and reliable. Accordingly, the current study aims to evaluate the psychometric properties of the German version of the ultra-brief, four-item Obsessive-Compulsive Inventory (OCI-4).</div></div><div><h3>Methods</h3><div>The psychometric properties of the OCI-4 were investigated in a German-speaking sample composed of 102 participants with OCD, 69 participants with an anxiety-related disorder, and 248 non-clinical individuals.</div></div><div><h3>Results</h3><div>The OCI-4 showed good test-retest reliability, moderate-to-good construct validity, and good-to-excellent screening accuracy.</div></div><div><h3>Conclusions</h3><div>The results support that the German version of the OCI-4 is a valid and reliable screening tool for OCD symptoms with good-to-excellent psychometric properties. The OCI-4 could be established as a screening tool in various settings to identify those with likely OCD.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100953"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Olav van Groot Battavé , Julia D.K. Veeger , Kees J. Kan , Elisabeth M.W.J. Utens , Chaim Huijser , Luuk Stapersma
{"title":"Validation of the Family Accommodation Scale – Anxiety (parent- and child-report) and Coercive Disruptive Behavior Scale for Pediatric OCD in Dutch pediatric OCD patients","authors":"Olav van Groot Battavé , Julia D.K. Veeger , Kees J. Kan , Elisabeth M.W.J. Utens , Chaim Huijser , Luuk Stapersma","doi":"10.1016/j.jocrd.2025.100954","DOIUrl":"10.1016/j.jocrd.2025.100954","url":null,"abstract":"<div><h3>Introduction</h3><div>Family accommodation (FA) and coercive-disruptive behaviors are critical factors in the development, severity and treatment outcome of pediatric obsessive-compulsive disorder (OCD). Validated questionnaires assessing the degree of FA and coercive-disruptive behaviors are urgently needed to improve treatment outcomes for pediatric OCD.</div></div><div><h3>Aims</h3><div>To validate the Family Accommodation Scale – Anxiety (FASA parent-report), FASA child-report (FASA-CR) and Coercive Disruptive Behavior Scale for Pediatric OCD (CD-POC, parent-report) in a Dutch pediatric OCD population.</div></div><div><h3>Methods</h3><div>A confirmatory factor analysis (CFA) was performed on the first 9 items of the FASA and FASA-CR on both the clinical group and combined sample of clinical (N = 90) and control participants (N = 90), aged 8 to 18. Internal consistency, convergent validity and criterion validity of the FASA, FASA-CR and CD-POC were investigated.</div></div><div><h3>Results</h3><div>CFA supported the two-factor structure of the original FASA(-CR), indicating good fit. FASA(-CR)'s internal consistency ranged from .88 to .95. Positive correlations were found between parent-reported FA, child-reported FA and coercive-disruptive behaviors. Both parent- and child-report FA were positively correlated with OCD-symptom screening, OCD-severity and parenting stress. CD-POC's internal consistency ranged from .91 to .94. The FASA and CD-POC showed excellent- and the FASA-CR considerable criterion validity in distinguishing children with OCD from those without.</div></div><div><h3>Conclusion</h3><div>Findings support the reliability and validity of the Dutch FASA, FASA-CR and CD-POC. These findings and instruments of FA and coercive-disruptive behavior enhance the current assessment of pediatric OCD. Targeting these common underlying factors can improve understanding, treatment planning, treatment monitoring and treatment efficacy of pediatric OCD in clinical practice.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100954"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rodolfo Leuzzi , Giovanni Tardivo , Luca Pellegrini , Umberto Albert , Naomi A. Fineberg
{"title":"Psychedelics, OCD and Related Disorders: Setting methodological strategies for future studies","authors":"Rodolfo Leuzzi , Giovanni Tardivo , Luca Pellegrini , Umberto Albert , Naomi A. Fineberg","doi":"10.1016/j.jocrd.2025.100951","DOIUrl":"10.1016/j.jocrd.2025.100951","url":null,"abstract":"<div><h3>Background</h3><div>There is interest in the potential of psychedelics as treatments for Obsessive-Compulsive and Related Disorders (OCRDs), though research in this field is still at an early stage. In this review, we examine the methodological issues present in existing research investigating the use of psychedelics in OCRDs, as a basis for improved trial design.</div></div><div><h3>Methods</h3><div>We searched PubMed and PsycInfo for published studies and Clinicaltrial.gov for unpublished studies investigating the use of psychedelic in individuals with OCRDs. We reviewed the identified studies and described the main methodological issues undermining study outcomes. We analyzed the published selected papers using standard tools (Cochrane Risk of Bias for Non-Randomized Studies, ROBINS-I).</div></div><div><h3>Results</h3><div>We found just two published and seven unpublished studies. Risk of bias analysis revealed a critical risk of bias, primarily related to experimental design (e.g., absence of adequate control condition), expectation bias among study participants and problems ensuring adequate blinding. The analysis of unpublished studies, although limited, identified parallel concerns, while also highlighting the implementation of promising strategies for advancing the field.</div></div><div><h3>Discussion</h3><div>There is a shortage of unbiased evidence. Although the shortcomings in the design of the few existing studies raise important concerns, early potential efficacy justify further, well-designed research. Potential strategies, some of which already implemented in ongoing studies, to address current issues and improve the validity of future studies include the use of blinded raters and of a credible control (such as virtual reality), the choice of a lower drug dose and the inclusion of only drug-naive subjects.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100951"},"PeriodicalIF":1.9,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jakob Fink-Lamotte , Emilie Nolte , Leander Huhn , Nele Dippel , Maike Salazar Kämpf , Henning Daus , Ina Jahn , Katarina Stengler , Cornelia Exner , Margund K. Rohr
{"title":"Symptom accommodation in obsessive-compulsive and major depression disorder: Effects on relationship quality","authors":"Jakob Fink-Lamotte , Emilie Nolte , Leander Huhn , Nele Dippel , Maike Salazar Kämpf , Henning Daus , Ina Jahn , Katarina Stengler , Cornelia Exner , Margund K. Rohr","doi":"10.1016/j.jocrd.2025.100950","DOIUrl":"10.1016/j.jocrd.2025.100950","url":null,"abstract":"<div><div>Accommodation processes often sustain the disorder and affect the relationship between patients and their close others. However, the current evidence on the interplay between accommodation behaviour (AB) and relationships is contradictory, partly because studies usually consider either the patient or the relative. The present study addresses this gap by examining the association between AB and various relationship aspects in 50 dyads, consisting of 25 patients with obsessive-compulsive disorder (OCD) or 25 patients with major depression (MDD) and their respective close others. After the dyads recalled a shared disorder-specific emotional experience, they responded to various questionnaires assessing family accommodation, OCD symptoms, depression, relationship satisfaction, subjective closeness, and conflict frequency based on an individually described relationship context. The results of the actor-partner interdependence models point to similarities and disorder-specific differences. For both groups, AB represents a challenge in the relationship. Although AB is associated with more frequent conflict, lower subjective closeness, and lower relationship satisfaction in dyads with OCD and close others of MDD, patients with MDD are more likely to experience AB as supportive. This suggests differences in the functionality of AB across various disorders, with potential disorder-maintaining effects in both OCD and MDD. Clinically, the results highlight the importance of interventions targeting interpersonal dynamics, such as family therapy and psychoeducation, to balance support while reducing symptom-maintaining behaviours. Future research should explore tailored interventions to optimize relationship functioning while minimizing the negative effects of AB.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100950"},"PeriodicalIF":1.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Social networks in the context of hoarding disorder: A cross-sectional study","authors":"Sanjana Bedi, Sheila R. Woody","doi":"10.1016/j.jocrd.2025.100949","DOIUrl":"10.1016/j.jocrd.2025.100949","url":null,"abstract":"<div><div>Hoarding disorder is characterised by distress and difficulty in discarding items, leading to excessive accumulation. People with hoarding disorder experience difficulties in social relationships, including familial conflict and frustration, and less adaptive interpersonal styles. Analysing their social networks can help develop interventions for improved interpersonal functioning. This research investigated social network structure (size and frequency of contact), social isolation and loneliness in relation to hoarding disorder, accounting for depression. Participants (<em>N =</em> 158) completed online questionnaires including measures of hoarding severity, social network structure, loneliness, conditions and functioning in the home, and depression. Hoarding symptom severity was negatively correlated with social network size and strength of relationship with neighbours while controlling for depression. Loneliness, however, was better predicted by depression rather than hoarding. We also compared participants who met criteria for a diagnosis of hoarding disorder (<em>n</em> = 57) and 60 healthy controls, controlling for both age and depression. People with hoarding disorder had significantly weaker family networks and stronger feelings of loneliness. Depression, but not hoarding symptoms, correlated with risk of social isolation. Among participants with hoarding, social network size was negatively correlated with functional interference (activities of daily living) and conditions in the home. Our findings stress the need for addressing social functioning when treating hoarding. Depression, integrally related to hoarding and social functioning, also needs to be considered.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100949"},"PeriodicalIF":1.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anna Großmann, Annika Wiebe, Nina Edlinger, Alexandra Philipsen, Niclas Braun , Katharina Bey
{"title":"Assessment of sense of agency in obsessive-compulsive disorder using a virtual reality stove-checking paradigm","authors":"Anna Großmann, Annika Wiebe, Nina Edlinger, Alexandra Philipsen, Niclas Braun , Katharina Bey","doi":"10.1016/j.jocrd.2025.100940","DOIUrl":"10.1016/j.jocrd.2025.100940","url":null,"abstract":"<div><div>Obsessive-compulsive disorder (OCD) has previously been linked to a lower sense of agency (SoA), i.e. the sense of being the initiator and executor of one's own actions. Beyond that, not just right experiences and feelings of incompleteness have been discussed as relevant aspects in the perpetuation of compulsions. In the present study, we examined SoA in OCD using a symptom-provoking virtual reality (VR) task. Twenty individuals with OCD and 23 healthy controls had to turn off a virtual stove using an embodiable virtual hand under four experimental conditions. These conditions differed with respect to whether the virtual hand accurately reflected the participant's real hand movements or was visually manipulated, and whether the stove actually turned off or remained on. Subjective ratings of SoA, certainty and anxiety were recorded. Furthermore, repeated checking was assessed in a second block. Across conditions, individuals with OCD exhibited a significantly lower SoA, which was also more sensitive to experimental manipulation. Moreover, a lower SoA was significantly associated with increased levels of incompleteness and inflated responsibility attitudes. Our findings suggest that incompleteness, inflated responsibility and a lower SoA may mutually reinforce each other in a vicious cycle, contributing to the maintenance and exacerbation of OCD symptoms.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100940"},"PeriodicalIF":1.9,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Catherine E. Rast , Tracey Dibbs , Caitlin M. Pinciotti , Nisha Jagannathan , Jonathan S. Abramowitz , Mary C. Kimmel , Rashelle Musci , Gerald Nestadt , Paul Nestadt , Lauren M. Osborne , Jack Samuels , Eric A. Storch
{"title":"Psychometric properties of the postpartum thoughts and behaviors checklist","authors":"Catherine E. Rast , Tracey Dibbs , Caitlin M. Pinciotti , Nisha Jagannathan , Jonathan S. Abramowitz , Mary C. Kimmel , Rashelle Musci , Gerald Nestadt , Paul Nestadt , Lauren M. Osborne , Jack Samuels , Eric A. Storch","doi":"10.1016/j.jocrd.2025.100939","DOIUrl":"10.1016/j.jocrd.2025.100939","url":null,"abstract":"<div><div>Obsessive compulsive disorder (OCD) has an increased prevalence throughout pregnancy and in the postpartum period relative to non-peripartum periods. While some obsessive-compulsive symptoms in this period present in the same manner to those in non-postpartum OCD, others are more specific to the postpartum period (e.g., obsessions related to sudden infant death syndrome [SIDS]). However, there are few validated scales assessing obsessive-compulsive symptoms during the postpartum period. This study examined the psychometric properties of the Postpartum Thoughts and Behaviors Checklist (PTBC), a semi-structured interview of intrusive thoughts and repetitive, neutralizing behaviors developed to address this gap. In a sample of 257 women at 6 weeks postpartum, the PTBC demonstrated good internal consistency, criterion validity between individuals with a diagnosis of OCD and those without, and convergent validity with the Yale-Brown Obsessive Compulsive Scale, and Obsessive-Compulsive Inventory-Revised. Additionally, using a LCA approach, the PTBC demonstrated a 3-class structure of the thoughts and the behaviors subscales. Overall, these results provide psychometric evidence that the PTBC is reliable and valid and can be used to assess the prevalence and severity of postpartum obsessions and compulsions.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"45 ","pages":"Article 100939"},"PeriodicalIF":1.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hanna McCabe-Bennett , Bethany A. Roorda , Todd A. Girard , Richard Lachman , Martin M. Antony
{"title":"Relationship among indecisiveness, perfectionism, and hoarding symptoms in individuals with and without hoarding disorder","authors":"Hanna McCabe-Bennett , Bethany A. Roorda , Todd A. Girard , Richard Lachman , Martin M. Antony","doi":"10.1016/j.jocrd.2024.100929","DOIUrl":"10.1016/j.jocrd.2024.100929","url":null,"abstract":"<div><div>Cognitive-behavioral approaches to understanding hoarding disorder propose that indecisiveness driven by a fear of making mistakes about discarding may contribute to hoarding psychopathology. The current study examined the relationship between indecisiveness, hoarding, and related constructs in a sample of individuals with hoarding disorder. Forty individuals with hoarding disorder and 36 individuals without hoarding disorder completed questionnaires measuring hoarding symptoms, depression symptoms, indecisiveness, and perfectionism. Results indicated that individuals with versus without hoarding disorder demonstrated significant differences in indecisiveness and some types of perfectionism. This group difference in indecisiveness disappeared when controlling for perfectionism, but not vice versa. Follow-up analyses controlling for OCD symptoms suggest that these main findings may be true only for those with both OCD and hoarding symptomatology. These results suggest that perfectionism may play an important role in the relationship between indecisiveness and hoarding disorder, shedding light on possible mechanisms behind hoarding symptoms, and offering possible treatment targets.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"44 ","pages":"Article 100929"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Treatment outcomes across OCD symptom dimensions in internet-delivered cognitive behaviour therapy: A routine care evaluation","authors":"Alison Mahoney , Aaron Chu , Christine Shiner , Michael Millard , Vlasios Brakoulias","doi":"10.1016/j.jocrd.2025.100937","DOIUrl":"10.1016/j.jocrd.2025.100937","url":null,"abstract":"<div><div>Clinical presentations of obsessive-compulsive disorder are heterogeneous. While Internet-based cognitive behaviour therapy (iCBT) is an efficacious treatment for OCD symptoms as a whole, it is unclear if iCBT is effective across different OCD symptom profiles. This study evaluated iCBT outcomes across four common OCD symptom dimensions in 2136 adults undertaking treatment in routine care. At pre-, mid- and post-treatment, participants completed a measure of OCD symptom dimensions, as well as measures of depression, psychological distress, and disability. The most common primary OCD symptom dimensions were unacceptable thoughts (reported by 660 participants, 30.9% of the sample) and responsibility for harm (n = 461, 21.6%). Primary contamination (n = 388, 18.2%) and symmetry symptoms (n = 270, 12.6%) were less common, as were multiple primary OCD dimensions (n = 357, 16.7%). iCBT was consistently associated with large effect size reductions in individuals’ most severe presenting OCD symptoms regardless of the type of symptom dimension (gs = 1.45–1.62). iCBT was also associated with significant reductions in overall OCD symptoms (g = .99), depression (g = .70), distress (g = .90) and disability (g = .44). Findings suggest that common OCD symptom dimensions are responsive to standard iCBT and that iCBT should continue to be recommended and prescribed in routine clinical care settings.</div></div>","PeriodicalId":48902,"journal":{"name":"Journal of Obsessive-Compulsive and Related Disorders","volume":"44 ","pages":"Article 100937"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}