en رويكرد شناختي رفتاري Cognitive behavioral پژوهشي Original Research Article <strong>Objective</strong>: Cognitive theories and research have focused on the relationship between emotions, particularly anxiety, and the positive symptoms of psychosis. The aim of this study, based on Beck&rsquo;s cognitive theory, was to compare dysfunctional attitudes and cognitive insight between patients with anxiety disorders and those with delusion.<br> <strong>Methods</strong>: The study sample consisted of 90 participants in 3 groups (anxiety=30, delusion=30, healthy=30). The study subjects were interviewed using Structured Clinical Interview (SCID-I) for the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV). Then, they completed Beck Anxiety Inventory (BDI), Peters et al.&rsquo;s Delusions Inventory (PDI), General Health Questionnaire-28 (GHQ-28), Dysfunctional Attitudes Scale-26 (DAS-26), and Beck Cognitive Insight Scale (BCIS).&nbsp;<br> <strong>Results</strong>: The present research results indicated that anxiety and delusion groups presented significantly greater dysfunctional attitudes than the healthy subjects (P<0.001); however, there was no significant difference between the clinical groups. The anxiety group had significantly higher cognitive insight than the delusional (P<0.05) and normal groups (P<0.01); however, there was no significant difference between the last two groups.<br> <strong>Conclusion</strong>: Dysfunctional attitudes can be considered as a common aspect and cognitive insight as a differentiating aspect of anxiety and psychosis. Dysfunctional attitudes, Cognitive insight, Anxiety disorders, Psychotic disorders, Delusion 103 110 http://jpcp.uswr.ac.ir/browse.php?a_code=A-10-715-1&slc_lang=en&sid=1 Fatemeh Fatahi fattahi.fa28@gmail.com 0000-0002-1613-3743 No Department of Clinical Psychology, School of Behavioral Sciences and Mental Health (Tehran Institute of Psychiatry), Iran University of Medical Sciences, Tehran, Iran. Abbas Ramezani Farani ramezanifarani.a@iums.ac.ir 0000-0001-6910-237X Yes Department of Clinical Psychology, School of Behavioral Sciences and Mental Health (Tehran Institute of Psychiatry), Iran University of Medical Sciences, Tehran, Iran. Ahmad Ashuri 0000-0002-4444-4530 No Department of Clinical Psychology, School of Behavioral Sciences and Mental Health (Tehran Institute of Psychiatry), Iran University of Medical Sciences, Tehran, Iran. Seyed Vahid Shariat 0000-0001-5086-7719 No Mental Health Research Center, School of Behavioral Sciences and Mental Health (Tehran Institute of Psychiatry), Iran University of Medical Sciences, Tehran, Iran.