#4240. A Reliability Generalization Meta-Analysis of Runco Ideational Behavior Scale

September 2026publication date
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Journal’s subject area:
Visual Arts and Performing Arts;
Psychology (miscellaneous);
Developmental and Educational Psychology;
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Abstract:
The purpose of this study was to estimate the overall reliability values for the scores produced by Runco Ideational Behaviour Scale (RIBS) and explore the variability of RIBS score reliability across studies. To achieve this, a reliability generalization meta-analysis was carried out using the 86 Cronbach’s alpha estimates obtained from 77 studies that met the inclusion criteria. The analyses were conducted with the random-effects model using the transformed coefficient values from the Bonett’s method. Results revealed that education level (university vs non-university) and test version (19-item vs 23-item) significantly affected reliability estimates, suggesting that the alphas differed across the subcategories. The average reliability estimates for non-university samples (? = .925) and 23-item version (? = .913) were found to be higher than university samples (? = .886) and 19-item version (? = .865). Results also indicated that higher number of items, mean, and standard deviation of total scale score were associated with increased internal consistency in the RIBS.
Keywords:
Reliability values; random-effects model; education; research; internal consistency

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