The Journal of Behavioral Health Services & Research

, Volume 26, Issue 1, pp 5-17

Assessing behavioral health outcomes in outpatient programs: Reliability and validity of the BASIS-32

  • Susan V. EisenAffiliated withDepartment of Mental Health Services Research, McLean HospitalDepartment of Psychiatry, Harvard Medical School, Department of Mental Health Services Research, McLean Hospital Email author 
  • , Marsha WilcoxAffiliated withHarvard School of Public Health
  • , H. Stephen LeffAffiliated withthe Evaluation Center at the Human Services Research Institute
  • , Elizabeth Schaefer
  • , Melissa A. Culhane

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The Behavior and Symptom Identification Scale (BASIS-32) was developed to assess mental health outcomes among patients with severe illness treated on inpatient programs. However, its applicability and utility to those treated in outpatient programs has not been determined. The objective of this study was to assess reliability, validity, and sensitivity to change of the BASIS-32 among mental health consumers treated in outpatient programs. A total of 407 outpatients completed the BASIS-32 and the Short Form Health Status Profile (SF-36) at the beginning of a treatment episode and again 30 to 90 days later. Outpatients reported less difficulty at intake than did inpatients, and the BASIS-32 detected statistically significant changes 30 to 90 days after beginning outpatient treatment. Factor structure and construct validity were partially confirmed on this sample of outpatient consumers. Analyses of data from a wide range of facilities and samples would add to validation efforts and to further refinement of the BASIS-32.