A multivariate analysis of long-term stay in private practice psychotherapy.

Investigated the characteristics predictive of long-term stay in private practice psychotherapy in a population of 64 "long-term" clients (remained longer than 25 sessions, mean = 47 sessions) and 88 "short-term" clients (terminated before 25 sessions, mean = 7 sessions). Data consisted of T-scores on the intake MMPI and two variables (possession of insurance coverage and use of psychoactive medication) on which long and short-term clients had been found to differ in other research. Stepwise multiple regression analysis was performed and revealed that MMPI scales 2 and 0 added to the prediction of length of stay in psychotherapy (p < .01). Insurance and medication were significant predictors only when MMPI data were not used.