Browsing by Author "Kadak, Muhammed Tayyib"

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Psychometric Properties of the Turkish Version of the Child Ptsd Symptom Scale
(W B Saunders Co-elsevier inc, 2014) Kadak, Muhammed Tayyib; Boysan, Murat; Ceylan, Nesrin; Ceri, Veysi
Objective: Psychometric properties of the Turkish version of the Child PTSD Symptom Scale (CPSS) were examined in a sample of young individuals who experienced a severe earthquake. Method: Subjects were 479 children and adolescents recruited from schools after 18 months of Van earthquake. Mean age was 12.83 (SD +/- 1.88), ranging from 8 to 18. Results: Psychometric features were generally good for the CPSS. The original three-factor structure was replicated in this study. Internal consistency of the scale was good (ranged from alpha =.70 to alpha =.89 for total and subscale scores). The CPSS demonstrated good convergent validity with Child Post-Traumatic Stress Disorder Reaction Index scores as well as good divergent validity with the State and Trait Anxiety Inventory for Children and Child Depression Inventory. As an evidence for a good discriminant validity, the CPSS successfully distinguished high PTSD individuals from low PTSD individuals. Conclusion: The CPSS had sound psychometric properties in a Turkish youth population. (C) 2014 Elsevier Inc. All rights reserved.
Psychometric Properties of Turkish Versions of the Leyton Obsessional Inventory-Child Version (loi-Cv) and Obsessive Beliefs Questionnaire-Child Version (obq-Cv)
(Kure Iletisim Grubu A S, 2016) Boysan, Murat; Kadak, Muhammed Tayyib; Tarakcioglu, Mahmut Cem; Sertdurak, Zeynep Seda; Demirel, Omer Faruk
Objective: Juvenile obsessive-compulsive disorder has been increasingly recognized in the literature. However, the developmentally sensitive screening tools for obsessive-compulsive disorder (OCD) in children and adolescents still lag behind psychometric tools developed for adult OCD. The Leyton Obsessional Inventory-Child Version is the most widely utilized screening tool for juvenile OCD assessment. Our aim was to assess psychometric properties of the Leyton Obsessional Inventory-Child Version (LOI-CV) and Obsessive Beliefs Questionnaire-Child Version (OBQ-CV). Method: The sample consisted of 805 children and adolescents, aged from 11 to 17 years. Mean age of the sample was 13.85 (SD +/- 1.40) years. The LOI-CV, OBQ-CV, Obsessive Compulsive Inventory-Revised (OCI-R), State Trait Anxiety Inventory for Children (STAI-C) and Meta-Cognitions Questionnaire for Children (MCQ-C) were completed by respondents. The data were subjected to explanatory and confirmatory factor analyses. Internal consistency and two-week temporal stability of scale scores were computed. Results: Explanatory and confirmatory factor analyses yielded a three-factor solution for the LOI-CV: Compulsions, Obsessions and Mental Neutralizing. Internal reliability was high for the overall scale (alpha=0.86) and sub-scales (Cronbach alphas= 0.76, 0.75, and 0.70, respectively). Factor analyses suggested a new three factor solution for the OBQ-CV: Responsibility/Threat Estimation, Certainty/Control of Thoughts and Perfectionism. Internal consistency was excellent for the total measure (alpha=0.90) and the subscales (alpha=0.84, 0.82 ve 0.71, respectively). Retest reliability was high for the both LOI-CV (r=0.83) and OBQ-CV (r=0.78). Both of the measures revealed good convergent validity with the OCI-R, STAI-C, and MCQ-C. Conclusion: The LOI-CV and OBQ-CV had promising psychometric properties in a community sample of Turkish children and adolescents.
Seasonality of Self-Destructive Behaviour: Seasonal Variations in Demographic and Suicidal Characteristics in Van, Turkey
(informa Healthcare, 2013) Aydin, Adem; Gulec, Mustafa; Boysan, Murat; Selvi, Yavuz; Selvi, Fatih; Kadak, Muhammed Tayyib; Besiroglu, Lutfullah
Objective. Seasonality is one of the most interesting but still elusive issue in suicide research. Linkages of seasonality in suicides to possible contributors such as gender, type of method used, and climatic factors have received attention in different cultures. We aimed at evaluating seasonal trends in suicidal behaviour according to demographic characteristics, reasons for self-destructive behaviour and means preferred in suicide. Methods. Our aim was to assess the seasonal variation in self-destructive behaviour in terms of completed and attempted suicides in a 3-year time period from 2008 to 2010 in Van, Turkey. A total of 1448 cases were registered over a 3-year time period in the city. Seasonal deviations in demographic characteristics, reasons for suicide, and methods of suicide were evaluated. Results. Seasonal distribution of both completed and attempted suicides by gender did not significantly deviate. On the other hand, we found a significant decline in self-destructive behaviours among those who were single and student in the spring. We found a peak in self-destructive behaviours in the autumn among Individuals who suffer from psychological problems. Conclusions. Subjects with psychological difficulties were more prone to commit suicide in autumn. Seasonal differences in methods of suicide used by suicidal subjects were not significant.