The adaptation of adolescent decision making questionnaire into Turkish population

Ill ABSTRACT THE ADAPTATION OF ADOLESCENT DECISION MAKING QUESTIONNAHtE INTO TURKISH POPULATION Oğuzhan ÇOLAKKADIO?LU MA Thesis, Department of Education Sciences Supervisor: Ass. Prof. S. Sonay GÜÇRAY September, 2003, 124 pages The main purpose of this study was to adapt the Adolescent Decision Making Questionnaire (ADMQ) with into Turkish culture, which was developed by Mann, Harmoni and Beswick (1989) with the purpose of determining decisional self-esteem and decision making styles. The data was collected from 2789 students, (about 13-15 years), 1332 girls and 1457 boys. First, the ADMQ was translated into Turkish and the translated form of the questionnaire was evaluated and retranslated into English by the experts of linguistics to test its equivalence to original form. Construct validity was tested through factor analysis, criterion-related was tested by cronbach alpha test re-test reliability and coefficient It was realized from the explanatory factor analysis carried out with varymax rotation method that ADMQ contained five factors and 30 items were loaded on the same factors as in its original form. The criterion was analyzed with the correlation of ADMQ with Children's Depression Inventory (CDI), with State-Trait Anxiety Inventory for Children (STAIC) and with Coopersmith Self-Esteem Inventory (CSEI) were investigated. The criterian related validity of the questionnaire was tested bu examining its corelation with CDI, STAIC and CSEI scale scores. A significant negative corelation between maladaptive styles of ADMQ and CDI was found. A positive corelation between maladaptive styles of ADMQ and CSEI were also determined. Item reliability analysis indicated a very high significant values with cronbach alpha, corrected item-total corelation and test re-test corelation. 1 X. YÜKSEKÖ?RETİM KVMJlM BO-XUMANTASYOW MEHKSSİIV As a conclusuion validity and reliability analyses which were done in this study reveals that the questionnaire is a valid and reliability measure for the Turkish population. Keywords: Decision making in adolescents, decision making styles, decision making questionnaire.