Abdul Rahman NL, Mokhtar M, Farzeeha Ali D. Validity and Reliability of Self-Initiated Professional Development (SI-PD) Instrument: A Rasch Measurement Model approach for Pilot Study. IJARPED [Internet]. 2021 Nov. 21 [cited 2025 Jul. 8];10(4). Available from: https://ijarped.com/index.php/journal/article/view/1996