This study compared 2021 and 2022 WAEC and NECO Chemistry multiple choice question in Enugu State, Nigeria. The comparison covered the various levels of the cognitive domain of Bloom’s Taxonomy of Educational Objectives. The population of the study was 220 West Africa Examination Council (WAEC) and National Examination Council (NECO) Senior School Certificate Examination (SSCE) objective test items for Chemistry. There was no need for sampling since the population was manageable. Percentage was used in answering the research questions while Chi-square was used in testing the hypotheses. The result showed that for both examining bodies, most of the questions were on knowledge. When the distribution of the questions across the various levels of the cognitive domain, set by WAEC and NECO were compared, significant relationship was discovered in 2021 questions, whereas in 2022 questions, no significant relationship was observed. The conclusion therefore is that, as far as the distribution of questions across the various levels of the cognitive domain is concerned, WAEC is more consistent than NECO. Based on the finding of this study, it was recommended that authorities of National Examination Council ensure that subsequent SSCE Chemistry questions are appropriately distributed across the various levels of the cognitive domain.
Keywords: Bloom’s taxonomy, Cognitive domain, National Examination Council, West Africa Examination Council