Wahyuni, R., Marliani, M., Lusiatun, L., Japar, A. , Pangaribuan, I.K. , Manurung, H.R. , Adethia, K., Fathahilah, B.D. , Sinaga, I.P. and Dalimunthe, J.R. 2026. Effectiveness of a Positive Deviance–Based Educational Intervention on Children’s Self-Esteem for Bullying Prevention: A Quasi-Experimental Study. Journal of Applied Nursing and Health. 8, 1 (Mar. 2026), 827–836. DOI:https://doi.org/10.55018/janh.v8i1.520.