Reliability and Validity of Scores on the Personal Preferences Self-Description Questionnaire (PPSDQ)

Abstract

The present study was conducted to investigate the reliability and the construct validity of scores on the Personal Preferences Self-Description Questionnaire (PPSDQ), a measure of Jungian types developed by the last author. Classical psychometric analyses of data from 641 participants were supportive of a view that the instrument has reasonable properties; these analyses included item and alpha analyses and both oblique and orthogonal exploratory factor analyses. The divergent validity of PPSDQ scale scores was also investigated.