Performance Evaluation of Senior Secondary School Students’ Mock Examination Questions in Chemistry in Adamawa State, Nigeria

The study examined the content validity of Chemistry MOCK examination questions for senior secondary school students set by Adamawa State Educational Resource Centre (ERC), Yola. Students have been passing the MOCK examinations but unfortunately performance poorly in the subject in their final year external examination like WAEC in Adamawa State. The main objective of the study was to determine the representativeness of the topics in the senior secondary school Chemistry curriculum in the MOCK examination question papers from 2015 to 2019. Three research questions were raised and two research hypotheses formulated. An ex-post facto research design was used for the study. The population of the study comprised all MOCK examination questions in Chemistry and those involved in handling Chemistry MOCK question papers which includes both essay and objective examination questions. The research instrument used for the study was MOCK examination question papers in Chemistry in order to determine whether the contents are as indicated in Chemistry curriculum for senior secondary schools. The validity of the instrument was determined by some experts. And for the reliability of the instrument, a trial-test was conducted where a reliability index of 0.75 was obtained using Cronbach alpha. The research questions were answered using descriptive statistics while the null hypotheses were tested using Chi-square. The findings of study revealed that the content validity of the chemistry MOCK examination questions has not yet improved in order to prepare the students of senior secondary schools in Adamawa state for WAEC, NECO or NABTEB examinations.