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 [Internet]. 2026 Nov. 12 [cited 2026 Nov. 13];4(6):401-13. Available from: https://demagogi.com/index.php/i/article/view/212