Kipkogei, K.E. , Ondigi, PhD, S.R. and Nyamu, PhD, F.K. 2025. Effectiveness of Assessment Tools used in Assessing Achievement of Core Competencies in Social Studies in Public Primary Schools in Nakuru County, Kenya. Journal of Education. 5, 3 (May 2025), 1–17. DOI:https://doi.org/10.70619/vol5iss3pp1-17.