D
Dana S. Thordarson
Researcher at University of British Columbia
Publications - 36
Citations - 6138
Dana S. Thordarson is an academic researcher from University of British Columbia. The author has contributed to research in topics: Anxiety & Cognitive therapy. The author has an hindex of 22, co-authored 36 publications receiving 5675 citations. Previous affiliations of Dana S. Thordarson include Boston University & Concordia University Wisconsin.
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Journal ArticleDOI
Cognitive assessment of obsessive-compulsive disorder
Randy O. Frost,Gail Steketee,Nader Amir,Martine Bouvard,Cheryl N. Carmin,David A. Clark,Jean Cottraux,Jane L. Eisen,Paul M. G. Emmelkamp,Edna B. Foa,Mark H. Freeston,R Hoekstra,Michael J. Kozak,Michael Kyrios,Robert Ladouceur,John S. March,Dean McKay,Fugen Neziroglu,Gilbert Pinard,Alec Pollard,Christine Purdon,Stanley Rachman,Josée Rhéaume,Candida Richards,Paul M. Salkovskis,Ezio Sanavio,Roz Shafran,Claudio Sica,Gregoris Simos,Debbie Sookman,Frank Tallis,Steven Taylor,Dana S. Thordarson,Samuel Turner,Patricia van Oppen,Ricks Warren,Jose A. Yaryura-Tobias +36 more
TL;DR: In this article, the authors describe the progress of an international group of investigators who have commenced a coordinated effort to develop a standardized set of cognitive measures for obsessive-compulsive disorder.
Journal ArticleDOI
Psychometric validation of the obsessive belief questionnaire and interpretation of intrusions inventory - Part 2: Factor analyses and testing of a brief version
Gail Steketee,Randy O. Frost,Sunil Bhar,Martine Bouvard,John E. Calamari,Cheryl N. Carmin,David A. Clark,Jean Cottraux,P.M.G. Emmelkamp,Elizabeth Forrester,Mark H. Freeston,Celia Hordern,Amy S. Janeck,Michael Kyrios,Dean McKay,Fugen Neziroglu,Caterina Novara,Gilbert Pinard,C. Alec Pollard,Christine Purdon,Josée Rhéaume,John H. Riskind,Paul M. Salkovskis,Ezio Sanavio,Roz Shafran,Claudio Sica,Gregoris Simos,Ingrid Sochting,Debbie Sookman,Steven Taylor,Dana S. Thordarson,Patricia van Oppen,Ricks Warren,Maureen L. Whittal,Sabine Wilhelm,Jose A. Yaryura-Tobias +35 more
TL;DR: Factor analysis of the Obsessive Belief Questionnaire and the Interpretation of Intrusions Inventory yielded a single factor, suggesting the total score be used in lieu of the 3 rationally derived subscales, and Discriminant validity was promising.
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Thought-action fusion in obsessive compulsive disorder☆
TL;DR: In this paper, a highly reliable questionnaire to measure TAF has been developed, and psychometric data obtained from two studies are presented, showing that TAF was higher in obsessional samples than in nonobsessional samples.
Journal ArticleDOI
Development and initial validation of the Obsessive Beliefs Questionnaire and the Interpretation of Intrusions Inventory.
Mark H. Freeston,Gail Steketee,Randy O. Frost,Nader Amir,Martine Bouvard,Cheryl N. Carmin,David A. Clark,Jean Cottraux,Paul M. G. Emmelkamp,Elizabeth Forrester,R Hoekstra,Michael Kyrios,R Ladouceur,Fugen Neziroglu,Gilbert Pinard,CA Pollard,Christine Purdon,Stanley Rachman,Josée Rhéaume,Candida Richards,Paul M. Salkovskis,Ezio Sanavio,Roz Shafran,Claudio Sica,Gregoris Simos,Ingrid Söchting,Debbie Sookman,Steven Taylor,Dana S. Thordarson,vanP Oppen,Ricks Warren,Maureen L. Whittal,Jose A. Yaryura-Tobias +32 more
TL;DR: Initial examination of reliability and validity indicates excellent internal consistency and stability and encouraging evidence of validity, however, high correlations indicating overlap between some of the scales, particularly importance of thoughts, control of thought, and responsibility will need to be addressed in subsequent empirical and theoretical investigations.
Journal ArticleDOI
Comparative efficacy, speed, and adverse effects of three PTSD treatments: Exposure therapy, EMDR, and relaxation training.
Steven Taylor,Dana S. Thordarson,Louise Maxfield,Ingrid C. Fedoroff,Karina Lovell,John S. Ogrodniczuk +5 more
TL;DR: Compared with EMDR and relaxation training, exposure therapy produced significantly larger reductions in avoidance and reexperiencing symptoms, and tended to be faster at reducing avoidance and yield a greater proportion of participants who no longer met criteria for PTSD after treatment.