Standardization of a Brief Symptom Inventory (BSI) for Diagnostic Aims in Consultant and Therapeutic Situations

The purpose of this study was selecting, normalization and standardization of Iranian SCL 90-R. 51 items that seemed to represent all psychometric characteristics of this inventory were selected and investigated. 459 students as a sample group were selected by using multi-stage clustering method from students of Eastern and Western Azerbijan Universities. The research method of this study was exploratory Psychometric characteristics of Brief Symptom Inventory (BSI), including reliability and validity. The methods of test-retest and internal consistency (Cronbach's alpha) were used to obtain reliability. Cronbach's alpha was between 0/59 to 0/84 and for all scales was 0/95. Criterion validity (correlation of SCL-90-R scales and BSI inventory scales) was used for validity. Correlation between two inventory scales was significant (0/9-0/98). Also test-retest reliability for 9 scales was between 0/75-0/91. Eventually by using T-test independent groups, range of each scales for male and females were compared and results indicated that differences between Som, Ins, Dep., Anx, Phob, and Par scales were significant and range of each scales for females was higher than for males