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The factor structure and concurrent validity of the Penn State Worry Questionnaire (PSWQ) were examined in two college student samples in Korea. We demonstrated method effects due to the inclusion of negatively keyed items. Confirmatory factor analyses supported the single-factor model with method factor. This indicates that the Korean version of the PSWQ (K-PSWQ) can be contaminated by method effects and response patterns are different between positively worded and reverse-scored items. Thus, the relevance of negatively worded items in the K-PSWQ is questioned. Depression and Anxiety, 2008. © 2007 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]

This study empirically tested the specificity of the integrated cognitive model (ICM) of depression, which postulates that negative life events interact with dysfunctional attitudes to increase the frequency and severity of automatic thoughts, subsequently affecting depressive symptoms. We also examined the three competing models: the linear mediation model, the alternative etiologies model, and the symptom model. We anticipated that we might examine these models more appropriately using data from a population at an increased risk of developing depressive symptoms. As such, two-wave panel data were obtained from a group of 107 Korean migrants who had been in Australia less than 1 year. Structural equation modeling revealed that the ICM provided an adequate and much better fit than the three competing models. The ICM was also found to support the cognitive specificity theory of depression and anxiety. These findings suggest that dysfunctional attitudes can be a common cognitive moderator of depression and anxiety, whereas automatic thoughts and anxious self-statements can be specific cognitive mediators of anxiety and depression, respectively. Depression and Anxiety 24:112–123, 2007. © 2006 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]

Two independent studies were conducted to examine the autogenous–reactive subtype model of obsessions [Lee and Kwon, 2003]. Study 1 demonstrated that 30 obsessive–compulsive (OCD) patients' responses to autogenous versus reactive obsessions differed significantly with respect to emotional reactions, cognitive appraisals, and control strategies. Study 2 compared OCD patients whose primary obsessions were of the autogenous subtype (n=13) with OCD patients whose primary obsessions were of the reactive subtype (n=14). Results revealed significant differences between these two groups on several OCD-related domains including OCD symptom profiles, perfectionistic personality features, and dysfunctional beliefs. Theoretical and clinical implications are discussed. © 2005 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]