ASSESSING CHANGE WITH PREVENTIVE INTERVENTIONS - THE RELIABLE CHANGE INDEX

The Reliable Change Index portion of Jacobson's (Jacobson, Follette, & Revenstorf, 1984; Jacobson & Truax, 1991) procedure for determining clinically significant change provides a supplemental means of analysis to comparisons of group means in outcome research with preventive interventions. This article provides an overview of this procedure, a discussion of its implications with a preventive intervention, and a case example with a sample of 99 newlywed couples. Implications for practitioners using this procedure with preventive interventions are discussed.