The Diagnostic Interview Schedule (DIS) was administered to 220
psychiatric patients by lay interviewers. Kappas for agreement between DIS
and chart diagnoses ranged from .39 to -.03 and averaged .14 for 13
diagnostic categories. Agreement was best for affective, obsessive-
compulsive, and schizophrenic disorders and was poorest for phobias where
patients overemphasized fears. The authors suggest that clinician
evaluation of information collected by the DIS is important, especially in
diagnosing individual cases.