The RADS is a 30-item, self report measure of depression based on DSM-III criteria and consists of four subscales: sysphoric mood, anhedonia, negative self-evaluation, and somatic complaints. The respondent is to rate the frequency of each item occurring in the past two weeks on a 4-point Likert-type scale ranging from 1 "almost never" to 4 "most of the time". Total scores range from 30-120 with higher scores representing a greater degree of depressive symptomatology.