OGWU MARIAH ADAH; SULE MUHAMMAD. Reliability Estimation Using Cronbach’s Alpha for National Value Education Achievement Tests in Secondary Schools in Gusau Educational Zone, Zamfara State. Demagogi: Journal of Social Sciences, Economics and Education, [S. l.], v. 4, n. 6, p. 401–413, 2026. DOI: 10.61166/demagogi.v4i6.212. Disponível em: https://demagogi.com/index.php/i/article/view/212. Acesso em: 13 nov. 2026.