The short Persian version of motorcycle riding behavior questionnaire and its interchangeability with the full version.

Hojjat Hosseinpourfeizi,Shahryar Behzad Basirat,Hossein Mashhadi Abdolahi,Shaker Salarilak,Homayoun Sadeghi-Bazargani,Kamal Hassanzadeh,Davoud Khorasani-Zavareh,Leili Abedi,Amir H Pakpour

doi:10.1371/journal.pone.0201946

Abstract

The aim of current study was to develop a valid and reliable short motorcycle riding behavior questionnaire (SMRBQ) and assess its interchangeability with the original 48-item tool. Through a psychometric study in Bukan district of Iran in 2015, the most recent available Persian version of the motorcycle riding behavior questionnaire (MRBQ) was used as a reference to develop its short version, the SMRBQ. The preliminary version was prepared through expert reviews, and its dimension was further reduced through principal component analysis (PCA). An exploratory factor analysis (EFA) was then applied on the remaining items and the final version was developed with 23 items. The validity, consistency, agreement and interchangeability of the SMRBQ were assessed in parallel with the MRBQ using several statistical methods including Kendall’s Tau, intra-class correlation coefficient (ICC), Bland-Altman plot and receiver operating characteristics (ROC) curve analysis. All the 340 participants were males. The mean age of the participants was 30.2 (SD = 9.1). SMRBQ was developed including 23 items. The mean normalized score for the full version was 30.5 (SD = 11.2) and it was 30 (SD = 13.9) for the short version. There was a high correlation between the normalized scores of MRBQ and SMRBQ (Kendall’s Tau = 0.82). The ICC of the interchangeability of the full version and short version scales was as high as 0.92 (95% CI: 90.2–93.5). The scale had adequate internal consistency based on the calculated Cronbach’s alpha which was 0.85 for the scale. Bland-Altman and ROC curve analysis confirmed the interchangeability and criterion validity of the SMRBQ. The Persian version of SMRBQ was found to be a valid, reliable and feasible tool for assessing motorcycle riding behavior in the studied population.

Highlights

Motorcycle users are part of the road users with higher vulnerability to traffic injuries
Developing short versions of the available tools with acceptable interchangeability could be of high value in conducting studies when there is a shortage in time or financial support or when there is a risk of unacceptable attrition if the data collection tools are long enough to affect participation
The results of preliminary principal component analysis (PCA) showed that some items such as items No 29 & 30, dropped through expert comments, had lower squared multiple correlations of variables with all other variables (Fig 1)

Summary

Introduction

Motorcycle users are part of the road users with higher vulnerability to traffic injuries. In order to investigate motorcycle riding behavior it should be taken into account that motorcycle riders comprise a specific subpopulation of vehicle users with various purposes for using motorbikes other than just transportation These might include such purposes as: recreation, sporting, delivery of goods, carrying passengers and even illegal activities [8,9,10,11,12,13]. In order to be able to conduct roadside surveys, completing a 48-item questionnaire along with other background information or complementary tools affect the feasibility of conduct especially among the young motorcyclists. This may affect both the attrition and completeness of information. The aim of this study was to develop a valid and reliable short motorcycle riding behavior questionnaire (SMRBQ) in Persian and assess its interchangeability with the original 48-item motorcycle riding behavior questionnaire (MRBQ)

Objectives

Methods

Results

Conclusion