TURK PSIKIYATRI DERGISI, vol.30, no.3, pp.191-199, 2019 (SSCI)
Objective; The Obsessive Beliefs Questionnaire (OBQ) is a frequently used instrument in relevant literature for assessment of cognitive biases that play critical roles in appraisal of intrusive experiences in Obsessive-Compulsive Disorder (OCD). The questionnaire was initially designed as a 44-item questionnaire, then was shortened to 20 items and lastly was brought down to 9-items. Since so far, only the 44-item version has been available in Turkey, this study aimed to examine psychometric properties of the two shortened OBQ forms in a community sample.