THE RELATIONSHIP OF PATIENT-ADMINISTERED OUTCOME ASSESSMENTS TO QUALITY-OF-LIFE AND PHYSICIAN RATINGS - VALIDITY OF THE BASIS-32

The reliability and validity of a patient-administered version of the Behavior and Symptom Identification Scale (BASIS-32) was compared to t he original interviewer-administered version. The construct validity o f BASIS-32 subscales was assessed by examining their relationship with functional and satisfaction quality of life and physician ratings of functional and clinical status. A total of 361 acute psychiatric inpat ients were given a self-administered BASIS-32, nurse-administered Lehm an's Quality of life Interview (QOLI), and Psychiatrist Assessment For m at admission and discharge. The original factor structure, internal consistency reliability, discriminant validity and sensitivity to chan ge were replicated. The patient-administered BASIS-32 is equally as re liable and valid as the interview. Construct validity analyses reveale d that functional and satisfaction QOLI indices were moderately relate d to the BASIS-32 in the hypothesized directions. All satisfaction sca les were associated with significantly less severity. Physician rating s were only mildly related to the subscales, The BASIS-32 used in outc ome assessments with inpatients provides important and unique perspect ives on functional and clinical status that are not tapped by clinicia n-rated assessments.