Measurement

Structured Clinical Interview for the DSM (SCID): Structured Clinical Interview is a structured interview based on DSM-IV. In Iran, the Persian version of SCID was studied by Sharifi V et al., A kappa coefficient was 0.6 and general agreement (kappa total) for all current diagnosis was 0.52% [15].

Beck Depression Inventory (BDI-II): The BDI is a 21 question self report inventory. The BDI is consistent with the criteria for depression base on the diagnostic and statistical manual of mental disorders. BDI-II is positively correlated with the Hamilton depression rating scale (r=0.71), which is showing a good agreement, and it had also shown a high one week test retest reliability (alpha coefficient=0.91) [16].

The Automatic Thoughts Questionnaire: The questionnaire was developed in 1980 by Hollon SD and Kendall PC [17]. The ATQ measures depressogenic thought frequency and the believability. Internal consistency is between 0.96 and 0.97 [18]. Nazary GH et al., reported the Cronbach's alpha and test retest coefficients 0.96 and 0.84 respectively [19].

The Dysfunctional Attitudes Scale-40 items version: The DAS is self report inventory designed to measure irrational beliefs. Clak DA and Beck AT et al., reported the reliability of 0.89 and more for the forms A and B. The correlation between the two tests was reported to be more than 0.81 [20]. Internal consistency, test retest reliability revealed the reliability coefficient of 0.87 [21].