Comparative Analysis of the Reliability and Validity Coefficients of WAEC, NECO and NABTEB Constructed Mathematics Examination

Abstract

This study compared the reliability and validity co-efficient of mathematics examinations constructed by the West Africa Examination Council (WAEC), National Examinations Council (NECO), and National Business and Technical Examination Board (NABTEB), as a way to ascertain the extent in which these examination are comparable and met the required standard of a well standardized test in terms of reliability and validity.All the final year students of all Secondary School Students and Technical College Students in Nigeria constituted the population for the study. A total of 720 students were used as sample out of which 120 students were used for Test-retest method and the rest 600 students for other methods of estimating reliability and validity coefficients. The researcher adopted past WAEC, NECO and NABTEB mathematics questions as instruments for the study.Two hypotheses were raised, one on reliability and the other on validity and the two hypotheses were tested at 0.05 level of significance using Z-test, Fisher’s Transformation and Hotelling Williams Test. The results of the findings showed that WAEC, NECO and NABTEB mathematics achievement Examinations are highly reliable and valid. It also showed that the Examination bodies are comparable and equivalent.

DOI: 10.5901/jesr.2013.v3n2p397