Kamaruddin, S. N., Marzuki, M., Mohd Radzi, N. M., Ismail, K., & Mohd Noor, H. (2026). Extending MRBQ: development and preliminary psychometric evaluation of a multidimensional safety instrument for Malaysian school motorcyclists. Traffic Safety Research, 10, e000154. https://doi.org/10.55329/pnlr4910