A MULTIMETHOD VALIDATION OF THREE PSYCHIATRIC RATING SCALES WITH PRE-CHRONIC PSYCHIATRIC INPATIENTS
Abstract
The purpose of this study was to investigate the concurrent validity of three psychiatric rating scales, the Psychotic Inpatient Profile (PIP), Nurses Observational Scale for Inpatient Evaluation (NOSIE), and the Inpatient Scale for Minimal Functioning (ISMF) with a pre-chronic psychiatric inpatient population. Scores on the above three rating scales were obtained both from day and evening shift aide-level staff and from professional observers who also provided behavioral observations on an observational assessment instrument (TSBC) over a one-week period for a sample of 207 inpatients from six different wards. Results of this study indicated that overall level of functioning scores on the PIP, NOSIE and ISMF showed fairly high convergent validity across both instruments and raters but showed much less convergence with behavioral indices. Lower-order scores on the PIP and NOSIE also showed fairly good convergent and discriminant validity across different instruments and across different raters. Based on correlational, canonical correlation and multiple regression analyses, rating scale measures of social interaction and withdrawal related very strongly to observational measures of similar content, rating scale measures of manifest psychotic behavior showed a moderately strong relationship to behavioral indices and measures of irritability and self-care showed a much weaker relationship across methods. It was concluded that psychiatric rating scales, while an important approach to assessment, may not provide appropriate data for research requiring more direct assessment of patients' behavior on the ward.
Degree
Ph.D.
Subject Area
Psychotherapy
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