Abstract
An accurate tool that is sensitive to research activities in clinical practice is essential to measure research involvement of registered dietitian nutritionists. The aim of this study was to validate the Practice-Based Dietitian Research Involvement Survey (PBDRIS) in a sample of registered dietitian nutritionists working in clinical practice. The content validity index of the total PBDRIS was 0.90. The Cronbach [alpha] was 0.87 reflecting good reliability. Mean interitem correlations were optimal (0.24-0.41). Corrected item-total correlation scores were 0.30 or greater, suggesting adequate item correlation. Spearman correlation coefficients ranged from 0.34 to 0.72 reflecting tool reliability and reproducibility. The PBDRIS appears to be a valid and reliable tool for measuring research involvement.