SONIAWATI, Neng Ida; APINO, Ezi; RETNAWATI, Heri; SETIAWATI, Farida Agus; RAFI, Ibnu; ROSYADA, Munaya Nikma; REZKILATURAHMI, Rezkilaturahmi. Optimal number of response categories for a Likert-type questionnaire: A simulation study within the frameworks of Classical Test and Item Response Theory. REID (Research and Evaluation in Education), [S. l.], v. 12, n. 1, p. 1–25, 2026. DOI: 10.21831/reid.v12i1.95846. Disponível em: https://journal.uny.ac.id/index.php/reid/article/view/95846. Acesso em: 19 sep. 2026.