Bello Kaseem, S. 2025. DIFFERENTIAL ITEM FUNCTIONING ANALYSIS OF 2022 AND 2023 ALGEBRA AND ELEMENTARY TRIGONOMETRY EXAMINATIONS AT FEDERAL POLYTECHNIC DAURA, KATSINA STATE, NIGERIA. Gusau Journal of Entrepreneurship Development. 3, 2 (Dec. 2025), 36–42. DOI:https://doi.org/10.57233/gujed.v3i2.03.