Objective: To develop and validate a very brief version of the 24-item Real Relationship Inventory–Client (RRI-C) form.Method: Individual psychotherapy patients (N = 700) completed the RRI-C along with other measures. Psychometric scale shortening involved exploratory factor analysis, item response theory analysis, and confirmatory factor analysis. Reliability and convergent and discriminant validity of the scale and subscales were also assessed.Results: The 8-item Real Relationship Inventory–Client Short Form (RRI-C-SF) preserves the two-factor structure: Genuineness (k=4, α=.87) and Realism (k=4, α=.86), which were correlated at r=.75. CFA provided the following fit indices: X2/df=4.88, CFI=.98, TLI=.97, RMSEA=.07, and SRMR=.03. The RRI-C-SF demonstrated high reliability (α=.91); high correlation with the full-length scale (r=.96); and excellent convergent and discriminant validity with measures of other elements of the therapeutic relationship, personality characteristics, current mental health state, and demographic-clinical variables. Clinical change benchmarks were calculated to serve as valuable tools for both research and clinical practice.Conclusion: The RRI-C-SF is a reliable measure that can be used for both research and clinical purposes. It enables a nuanced assessment of the genuineness and the realism dimensions of the real relationship.
Discussion(0)
No comments yet. Be the first to comment.