The result showed that self-concept, training environment and circumstances has influences on students’ academic performance in Nigerian polytechnic. The model supposes that the perceived attributes of self concept, training environment and circumstances in polytechnics predict the academic performance. It explained self-concept, training environment and circumstances affect academic performance, with a good model fit. Data collected was analyzed using percentages and covariance structure model technique. A self-report questionnaire was administered on participants to collect information on demographic factors, self concept, training environment and circumstances used to determine the academic performance of students. Study participants were 240 students selected by convenience sampling from six Polytechnics (three State-owned and three Federal-owned) in the South-Western Nigeria. This was with a view to providing an appropriate frame work for predicting academic performance. This study identified the variables that tend to affect academic performance among mathematics students and developed covariance structure model for examining the relationships between the variables. CLASSROOM ENVIRONMENT, STUDENTS PERCEPTIONS OF ASSESSMENT, ACADEMIC EFFICACY AND ATTITUDE TO SCIENCE: A LISREL ANALYSIS Jeffrey P. However, studies on factors that affect mathematics achievement among Polytechnics students in Nigeria seem to be rare. Several studies on factors that affect mathematics achievement have been conducted.

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