The Incremental Validity of the sPaCE Scale in Predicting Treatment Outcome

Abstract

We examined the validity of the Shorter Psychotherapy and Counseling Evaluation (Halstead, Leach, & Rust, 2007). Results supported incremental predictive validity (up to 12%) over the Outcome Questionnaire–10.2 (OQ–10.2), predictive validity with the Outcome Questionnaire–45 and the Inventory of Interpersonal Problems–32, and convergent validity with the OQ–10.2.

Keywords:

• IIP–32
• incremental validity
• OQ–10
• OQ–45
• outcome
• sPaCE

Notes on Contributors

Laura E. Jimenez-Arista is in the Department of Counseling Psychology at Arizona State University.

Jennifer Holzapfel is in the Department of Counseling Psychology at Arizona State University.

Caroline E. Shanholtz is in the Department of Psychology at University of Arizona.

Terence J. G. Tracey is in the Department of Counseling and Counseling Psychology at Arizona State University and in the Department of Educational and Counselling Psychology and Special Education at University of British Columbia.