Abidemi Omotayo OLADEJI2024-06-142024-06-142023-12Ph.Dhttps://repository.lcu.edu.ng/handle/123456789/608This study investigated Work Indices, Environmental Factors and Academic Staff Job Performance in Colleges of Education, Southwest Nigeria. Problem of poor job performance of academic staff has been observed however a search of literature shows scarcity of studies on the influence of the above predictors on their job performance which provided a gap in knowledge that this study was carried out to address. Four research questions and three hypotheses guided the study. Study population consisted of lecturers (3,196) and 300L students (17,247) in federal and state colleges of education, Southwest, Nigeria. 942 lecturers and 1,119 students were sampled using multi-stage technique. Descriptive survey design was employed. Two questionnaires titled – Work Indices, Environmental Factors and Academic Staff Job Performance Questionnaire, (WIEFASJPQ) (α = .814) and Instructional Job Performance Questionnaire (IJPQ) (α = .794) were used to collect data. Data were analysed using descriptive and inferential statistics. Results showed moderate level of academic staff job performance in areas of instruction (x̅=2.994) and publication/supervision (x̅=3.122); moderate extent of work indices such as workload (x̅= 3.407), role conflict (x̅= 3.042) and role ambiguity (x̅ =3.263); and moderate level of environmental factors such as management support (x̅=3.141), interpersonal relationships (x̅=3.304) but low level of facilities (x̅=2.480). Hypotheses revealed significant joint contribution of work indices and environmental factors on academic staff job performance (F6, 775 = 3.295; P<0.05). Workload (β = .105; t = 2.557), role conflict (β = .093; t = 2.207), role ambiguity (β = .099; t = 2.361), management support (β = .062; t = 1.801) and facilities (β = .131; t = 2.696) except interpersonal relationships (β = .041; t = .732) have significant relative influence on academic staff job performance. There was a significant difference in academic staff job performance in Federal and State Colleges of education (t2, 0.05, df of 780 = 2.797; P<0.05). It was concluded that work indices and environmental factors influence the academic staff job performance in Southwest Nigeria colleges of education. It was recommended amongst others that work indices and environmental factors be improved upon to improve the academic staff job performance in the colleges of education. Keywords: Work Indices, Environmental Factors, Academic Staff, Job Performance, Role Ambiguity Word Count: 299enWork IndicesEnvironmental FactorsAcademic StaffJob PerformanceRole AmbiguityThesis