This scale comes from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2), where these 50 items compose the Psychopathic Deviate subscale. It is composed of 50 statements that must be answered true or false as applied to self.
The PD consists of 50 statements that are rated true or false as applied to self.
This scale has no nested primary scales.
Schiele, B. C., Baker, A. B., & Hathaway, S. R. (1943). The Minnesota multiphasic personality inventory. Journal-Lancet.
Comrey, A. L. (1958). A factor analysis of items on the MMPI psychopathic deviate scale. Educational and Psychological Measurement, 18(1), 91-98.