Abstract
Prior research has demonstrated that psychiatrists' judgments regarding prognosis for functional psychosis classifications are sufficiently reliable to support a prognosis judgment scale (prog scale) which possesses interval-scale measurement properties. The purpose of this study was to investigate whether the developed prog scale was related to published improvement, recovery, and length of hospitalization rates The results of this preliminary study suggest that psychiatrists' judgments regarding the prognostic aspects of the various functional psychosis classifications are meaningfully related to statistical data which may be regarded as being suitable for use as validity estimation criteria. The directionality of many of these observed relationships are discussed.
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