Date of Award

8-1984

Degree Name

Master of Arts

Department

Psychology

First Advisor

Dr. Norman Peterson

Second Advisor

Dr. Dale Brethower

Third Advisor

Dr. Jack Asher

Access Setting

Masters Thesis-Open Access

Abstract

Self-, peer-, and supervisor ratings were obtained on 52 psychiatric aides using a Behavioral Observation Scale (BOS). Self ratings showed less leniency error than peer- and supervisor ratings. Halo error could not be assessed due to a negative correlation between means and variences. A multitrait-multimethod (MTMM) analysis supported the presence of strong rater bias and significant convergent validity but not discriminant validity. The results of the analyses demonstrated that the ratings obtained from a BOS were not psychometrically superior to other appraisal formats. Questions were raised as to the adequacy of a five point scale, data transformation, and rating scales.

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