Development and validation of a computer-administered version of the Hamilton Rating Scale.

The authors developed a computer-administered form of the Hamilton Anxiety Scale (HAS; Hamilton, 1959), designed to provide a high degree of correspondence with the clinician interview version of the HAS. Both computer and clinician forms of the HAS were administered to psychiatric outpatients (n = 214) and community-based adults (n = 78). The computer-administered HAS demonstrated high internal consistency (r α =.92) and test-retest reliability (r tt =.96). A correlation of r(290) =.92, p <.001, was found between the computer and the clinician versions. The mean score difference between versions was small but significant, F(1, 290) = 21.36, p <.0011. In subjects with anxiety disorders the mean score difference between computer and clinician versions was not significant