Design and Psychometric of Measurement Tool of Unsafe Behaviors in Motorcycle Driving Based on Information, Motivation and Behavioral Skills Model

Aims: Unsafe behaviors of motorcyclists are one of the main causes of their mortality. Measuring the unsafe behaviors of motorcyclists and planning for control them in the first step, requires a tool that matches the cultural, social and religious characteristics of the society. The purpose of this study was to design and psychometric of measurement tool of unsafe behaviors in motorcycle driving based on information, motivation and behavioral skills model. Materials & Methods: In this cross-sectional descriptive-analytical study to determine the tool items, after reviewing the scientific resources, and the need assessment of beliefs in the community under study, a 32-item questionnaire consisting of information, motivation and behavioral skills domains was designed. Its validity was done by content validity (quantitative and qualitative), formal validity and construct validity (confirmatory factor analysis) and its reliability was done by internal consistency (Cronbach's alpha) and test-retest (ICC) using LISREL 8.8 software. Findings: After the validity and reliability, 21 items remained in the final version of the questionnaire. The content validity index was 0.97-1. Also, the results of construct validity showed RMSEA=0.071 and X2/df=1.97 (p<0.001). Tool reliability was confirmed using internal consistency (α=0.70-0.87) and its stability by test-retest (ICC=0.992). Conclusion: Designed questionnaire to assess the unsafe behaviors of motorcyclists based on the information, motivation and behavioral skills model has appropriate validity and reliability and is approved.