Motivational subtypes and continuous measures of readiness for change: concurrent and predictive validity

Psychol Addict Behav. 2003 Mar;17(1):56-65. doi: 10.1037/0893-164x.17.1.56.


This study compared the concurrent and predictive validity of motivational subtypes versus a continuous measure of readiness for change as measured by the University of Rhode Island Change Assessment Scale (URICA; E. A. McConnaughy, J. O. Prochaska, & W. F. Velicer, 1983) in 252 individuals participating in a substance abuse treatment study (38% female; mean age = 36). Hierachical cluster analysis identified a 2-cluster solution. Consistent with previous research, both the motivational subtypes and the continuous readiness measure exhibited good concurrent validity with both baseline characteristics and change process variables. Neither readiness-for-change measure predicted end treatment outcomes. Measures of readiness for change based on the URICA exhibit limited clinical utility, because they are not able to predict future behavior.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Cluster Analysis
  • Cognitive Behavioral Therapy
  • Female
  • Humans
  • Interview, Psychological*
  • Male
  • Models, Psychological*
  • Motivation*
  • Multivariate Analysis
  • New Jersey
  • Regression Analysis
  • Reproducibility of Results
  • Substance-Related Disorders / diagnosis*
  • Substance-Related Disorders / psychology
  • Substance-Related Disorders / rehabilitation*
  • Treatment Outcome