Background and Objective: Most
accidents can be directly attributed to human factors. The aim of this study is
to determine the validity and reliability of drivers aberrant behavior questionnaire in urban Bus Company.
Materials and Methods: This descriptive study was performed on 168 subjects (in order to
exploratory factor analysis) and 161 subjects (for the sake of confirmatory
factor analysis) from bus drivers in Tehran city. In this study, method of
random and stratified sampling were used for selection of drivers and the
samples were selected based on the number of items on the questionnaire. In the
present study, the items of aberrant drivers' behavior questionnaire obtained
based on Persian version of unsafe behavior questionnaire of public drivers.
For determination of the questionnaire factors and the confirmation exploratory
factor analysis (with extraction method of principal axis factoring analysis
and Varimax rotation) and confirmatory factor analysis were used, respectively.
For the exploratory factor analysis, Kaiser-Meyer-Olkin and Bartlett tests and extraction factors and for the confirmatory factor analysis
standard loads, t-values and fit model were used.
Results: The results of the exploratory factor analysis (EFA) excluded
four factors: risky violation, slip and lapse, highway violation and mistakes.
The findings of the confirmatory factor analysis (CFA) confirmed a significant
relationship between the manifest variables (questions) and latent elements (factors)
and showed that structures have an acceptable fit in the samples.
Conclusion: Aberrant
drivers' behavior questionnaire among bus drivers has suitable validity and
reliability. Therefore, using this tool is support and reliable in the future
research.
Key words: Validity and Reliability,
Questionnaire, Driver, Bus, Factor analysis
Funding: This research was
funded by Tarbiat Modares University.
Conflict of interest: None declared.
Ethical Approval: The Ethics Committee
of Tarbiat Modares University approved the study.
How to cite this
article: Varmazyar S, Mortazavi SB, Arghami SH,
Hajizadeh E.
Determination of the Validity and Reliability of bus Drivers' Behavior
Questionnaire: Exploratory and Confirmatory Factor Analysis. J Rafsanjan Univ Med Sci 2014 13(3): 235-48. [Farsi]
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