Six-month prognostic norms derived from studies of the Rorschach Prognostic Rating Scale

The Rorschach Prognostic Rating Scale (RPRS) was introduced in 1951 by Klopfer. Kirkner, Wisham, and Baker. The predictions of Klopfer et al. are compared to the outcomes in four studies of the RPRS. The originalinterpretation is shown to predict higher percentages of success than revealed by the empirical studies. A second interpretation of the scale is proposed on the basis of the experimental data. This interpretation relates RPRS scores to the chance for substantial improvement within 30 weeks of once weekly therapy by client-centered, rational-emotive, desensitization, aversion, or traditional methods. For any given RPRS score, the chance for substantial improvement is approximately the same for every type of therapy, and increases as the RPRS score increases. The second interpretation is proposed in both tubular and algebraic forms as a stimulus to further research and clinical applications.