Ahmad Abdullah Faqih and Nashrullah, N. 2026. Best Practices in Data Collection and Instrument Development: An Applicative Guide for Quantitative Researchers. INTERDISIPLIN: Journal of Qualitative and Quantitative Research. 3, 2 (Apr. 2026), 120–139. DOI:https://doi.org/10.61166/interdisiplin.v3i2.150.