The study sought to investigate the extent to which teacher made tests predict pupils performance in final O level Mathematics examinations in Seke Secondary Schools. Twoschools from Seke s five secondary schools were randomly chosen for the study. Quota samplingwas used to select four classes from the chosen two schools eight classes and systematicsampling was used to select a sample of 48 pupils from the four classes 320 pupils. Mid-yeartest and final examination results for the 48 pupils were extracted from official documents (markschedules and results slip duplicates). Interviews with...