| Abstract: | Investigated the relation between voluntary and nonvoluntary treatment application status and MMPI responses of 473 opiate addicts within and across 3 drug treatment settings. Treatment settings represented evaluation conditions occurring prior to admission in a selective program, during routine evaluation in an "open admission" program, and following acceptance to drug treatment. ANOVA comparisons of volunteer and nonvolunteer groups within each program revealed differences in MMPI responding for the selective treatment program and minimal differences for the other programs. Two-factor analyses of covariance performed for combined program samples showed that the treatment program variable was significantly related to S responses, but no significant main effects for voluntarism were found. Treatment applicants to the selective program reported greater psychopathology than Ss in other groups on 7 MMPI scales, but there were few significant scale differences between volunteers and nonvolunteers. Discriminant function analysis using MMPI scores and demographic data showed these variables to be of limited value in discriminating volunteer from nonvolunteer addict clients. (19 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
