Reliability and stability of the Comrey Personality Scales in a clinical setting

Examined split-half reliabilities, retest reliabilities, and stability of the Comrey Personality Scales (CPS) (Comrey, 1970) for a Navy sample of 200 young drug abusers tested at the beginning and end of rehabilitation in a no-feedback, compulsory participation setting. The pre-rehabilitation split-half reliabilities for the eight personality scales ranged from .73 to .94, with an average of .85, and ranged from .74 to .91, with an average of .83, on the post-rehabilitation administration. Retest reliabilities for the eight scales were between .39 and .64, with an average of .52. Post-rehabilitation means were significantly higher on four of the eight scales, and one scale mean was significantly lower. It is concluded that the CPS is appropriate in a clinical setting in which test participation is compulsory and test feedback is not made available to the respondents.