TY - JOUR
T1 - Psychometric validation of the obsessive belief questionnaire and interpretation of intrusions inventory - Part 2
T2 - Factor analyses and testing of a brief version
AU - Steketee, Gail
AU - Frost, Randy
AU - Bhar, Sunil
AU - Bouvard, Martine
AU - Calamari, John
AU - Carmin, Cheryl
AU - Clark, David A.
AU - Cottraux, Jean
AU - Emmelkamp, Paul
AU - Forrester, Elizabeth
AU - Freeston, Mark
AU - Hordern, Celia
AU - Janeck, Amy
AU - Kyrios, Michael
AU - McKay, Dean
AU - Neziroglu, Fugen
AU - Novara, Caterina
AU - Pinard, Gilbert
AU - Pollard, C. Alec
AU - Purdon, Christine
AU - Rheaume, Josee
AU - Riskind, John
AU - Salkovskis, Paul
AU - Sanavio, Ezio
AU - Shafran, Roz
AU - Sica, Claudio
AU - Simos, Gregoris
AU - Sochting, Ingrid
AU - Sookman, Debbie
AU - Taylor, Steven
AU - Thordarson, Dana
AU - Van Oppen, Patricia
AU - Warren, Ricks
AU - Whittal, Maureen
AU - Wilhelm, Sabine
AU - Yaryura-Tobias, Jose
PY - 2005/11
Y1 - 2005/11
N2 - 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.
AB - 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.
KW - Appraisals
KW - Beliefs
KW - Cognitive assessment
KW - OCD
KW - Perfectionism
KW - Responsibility
UR - http://www.scopus.com/inward/record.url?scp=24644453437&partnerID=8YFLogxK
U2 - 10.1016/j.brat.2004.07.010
DO - 10.1016/j.brat.2004.07.010
M3 - Article
C2 - 16299894
AN - SCOPUS:24644453437
SN - 0005-7967
VL - 43
SP - 1527
EP - 1542
JO - Behaviour Research and Therapy
JF - Behaviour Research and Therapy
IS - 11
ER -