Obsessive-Compulsive Cognitions Working Group. Psychometric validation of the Obsessive Belief Questionnaire and Interpretation of Intrusions Inventory-Part 2: Factor analyses and testing of a brief version

School of Social Work, Boston University, Boston, Massachusetts, United States
Behaviour Research and Therapy (Impact Factor: 3.85). 10/2005; 43(11):1527-1542. DOI: 10.1016/j.brat.2004.07.010


The Obsessive Belief Questionnaire (OBQ) and the Interpretation of Intrusions Inventory (III) were designed to assess beliefs and appraisals considered critical to the pathogenesis of obsessions. In previous reports we have described the construction and psychometric properties of these measures. In this study a battery of questionnaires assessing anxiety, depression, and obsessive compulsive symptoms was completed by 410 outpatients diagnosed with obsessive compulsive disorder, 105 non-obsessional anxious patients, 87 non-clinical adults from the community, and 291 undergraduate students. Items from 6 theoretically derived subscales of the OBQ were submitted to factor analysis. Three factors emerged reflecting (1) Responsibility and threat estimation, (2) Perfectionism and intolerance for uncertainty, and (3) Importance and control of thoughts. A 44-item version (OBQ-44) composed of high-loading items from the 3 factors showed good internal consistency and criterion-related validity in clinical and non-clinical samples. Subscales showed less overlap than original scales. Factor analysis of the III yielded a single factor, suggesting the total score be used in lieu of the 3 rationally derived subscales. The scales performed well on tests of convergent validity. Discriminant validity was promising; hierarchical regression analyses indicated that the OBQ subscales and III generally predicted OC symptoms after controlling for general distress. A revision of the OBQ, the OBQ-44, is included in the appendix (PsycINFO Database Record (c) 2012 APA, all rights reserved)

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    • "The OBQ-TRIP (20-item version) is a factor-analytically derived brief version of the original Obsessive Compulsive Cognitions Working Group (OCCWG) 44-item version [18]. Each of the 20 items designed to measure cognitions and beliefs central to OCD are rated on a 7-point Likert-type scale (1 = disagree very much to 7 = agree very much). "
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    ABSTRACT: Background Cognitive bias modification (CBM) interventions have demonstrated efficacy in augmenting core biases implicated in psychopathology. The current randomized controlled trial (RCT) will evaluate the efficacy of an internet-delivered positive imagery cognitive bias modification intervention for obsessive compulsive disorder (OCD) when compared to a control condition. Methods/Design Patients meeting diagnostic criteria for a current or lifetime diagnosis of OCD will be recruited via the research arm of a not-for-profit clinical and research unit in Australia. The minimum sample size for each group (alpha set at 0.05, power at .80) was identified as 29, but increased to 35 to allow for 20% attrition. We will measure the impact of CBM on interpretations bias using the OC Bias Measure (The Ambiguous Scenarios Test for OCD ;AST-OCD) and OC-beliefs (The Obsessive Beliefs Questionnaire-TRIP; OBQ-TRIP). Secondary outcome measures include the Dimensional Obsessive-Compulsive Scale (DOCS), the Patient Health Questionnaire (PHQ-9), The Kessler Psychological Distress Scale (K10), and the Word Sentence Association Test for OCD (WSAO). Change in diagnostic status will be indexed using the OCD Mini International Neuropsychiatric Interview (M.I.N.I) Module at baseline and follow-up. Intent-to-treat (ITT) marginal and mixed-effect models using restricted maximum likelihood (REML) estimation will be used to evaluate the primary hypotheses. Stability of bias change will be assessed at 1-month follow-up. Discussion A limitation of the online nature of the study is the inability to include a behavioral outcome measure. Trial registration The trial was registered on 10 October 2013 with the Australian New Zealand Clinical Trials Registry (ACTRN12613001130752)
    Trials 05/2014; DOI:10.1186/1745-6215-15-193 · 1.73 Impact Factor
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    • "OCD symptomatology was measured using different self-report questionnaires. The OBQ-44 assessed constructs of inflated responsibility/threat estimation, perfectionism/tolerance of uncertainty, and importance/control of thoughts [61]. The Obsessive Compulsive Inventory-Revised [62] was utilised to assess the distress associated with symptoms of OCD, such as checking, washing, obsessing and ordering. "
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    ABSTRACT: Objective Obsessive-compulsive personality disorder (OCPD) traits and obsessive-compulsive disorder (OCD) are commonly associated with patients with Anorexia Nervosa (AN). The aim of this review was to systematically search the literature to examine whether OCPD and OCD are positively associated with excessive exercise in patients with AN. Method A systematic electronic search of the literature (using PsycInfo, Medline and Web of Knowledge) was undertaken to identify relevant publications until May 2012. Results A total of ten studies met criteria for inclusion in the review. The design of the studies varied from cross-sectional to retrospective and quasi-experimental. Seven out of the ten studies reviewed demonstrated a positive relationship between OCPD and/or OCD in AN patients who exercise excessively, whilst three studies found a lack of relationship, or a negative relationship, between these constructs. Conclusion There is evidence from the literature to suggest that there is a positive relationship between OCPD and excessive exercise in patients with AN. However, the relationship between OCD and excessive exercise is less clear and further research is required to qualify the strength of such relationships. Future research should utilise the most comprehensive and reliable clinical assessment tools, and address prognostic factors, treatment factors and specific interventions for patients with OCPD and/or OCD and excessive exercise.
    Journal of Eating Disorders 05/2013; 1(1). DOI:10.1186/2050-2974-1-16
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    • "Participant characteristics were assessed via structured clinical interviews and self-report instruments. In this article, we report findings derived from standard demographics, the MINI, the Yale–Brown Obsessive–Compulsive Scale (Y- BOCS) [33], Avoidance and Reassurance-seeking Interview, Overvalued Ideas Scale (OVIS) [34], Symptom Checklist 90-Revised (SCL-90R) [35] and Obsessive Beliefs Questionnaire (OBQ) [36] [37]. The MINI (plus version) is a clinician-administered semistructured interview that was used to determine co-occurring DSM-IV diagnoses and their age of onset, in addition to ascertaining whether the DSM-IV criteria for OCD have been met. "
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    ABSTRACT: BACKGROUND: In the quest to unravel the heterogeneity of obsessive-compulsive disorder (OCD), an increasing number of factor analytic studies are recognising unacceptable/taboo thoughts as one of the symptom dimensions of OCD. AIMS: This study aims to examine the characteristics associated with unacceptable/taboo thoughts. METHODS: Using the Yale-Brown Obsessive-Compulsive Scale Symptom Checklist (YBOCS-SC) with 154 individuals with OCD, obsessive-compulsive symptoms were subjected to principal components analysis. The characteristics associated with the resulting symptom dimensions were then assessed using logistic and linear regression techniques. RESULTS: Unacceptable/taboo thoughts comprised of sexual, religious and impulsive aggressive obsessions, and mental rituals. Higher scores on an unacceptable/taboo thoughts symptom dimension were predicted by higher Y-BOCS obsession subscores, Y-BOCS time preoccupied by obsessions scores, Y-BOCS distress due to obsessions scores, importance of control of thought ratings, male gender, and having had treatment prior to entering into the study. Unacceptable/taboo thoughts were also predicted by greater levels of hostility, and a past history of non-alcohol substance dependence. CONCLUSIONS: An unacceptable/taboo thought symptom dimension of OCD is supported by a unique set of associated characteristics that should be considered in the assessment and treatment of individuals with these symptoms.
    Comprehensive psychiatry 04/2013; 54(7). DOI:10.1016/j.comppsych.2013.02.005 · 2.25 Impact Factor
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