An investigation of the validity of a symbolic non-verbal measure of personality rigidity, the Breskin rigidity test

The purpose of this study was to investigate the validity of the Breskin Rigidity Test (BRT), a symbolic, perceptually based instrument founded on Gestalt principles, for distinguishing between "more rigid" and "less rigid" persons. The study was designed to test the following hypotheses:1. The Breskin Rigidity Test (BRT) will be found to bea valid instrument for measuring personality rigidity when first administered.2. The Breskin Rigidity Test (BRT) will be found to be a valid instrument for measuring change in personality rigidity. If, after the lapse of a period of time, changes in personality rigidity are indicated by the readministration of the criterion instrument, like changes will also be indicated by the readministration of the BRT.Thesis (D. Ed.