Lakmal Prabhash Ranasinghe, Chandrika Fernando, Siremewan Waidyasekera and S M A K Manchanayakke 2025. QUANTIFYING PERSONALIZATION: A MULTIVARIABLE STUDY OF INDIVIDUALIZED TEACHING PLAN EFFECTIVENESS: Received: 04th December 2025, Revised: 11th December 2025, Accepted: 15th December 2025, Date of Publication: 17th December 2025. PUPIL: International Journal of Teaching, Education and Learning. 9, 3 (Dec. 2025), 184–203. DOI:https://doi.org/10.20319/pijtel.2025.93.184203.