A number of factors affects performance in business studies. The study was to investigate these factors, which affect students’ performance in business studies in Emurua Dikirr Sub-County, Narok County. The study was guided by the following research objectives; to establish the influence of teaching and learning resources on student’performance in business studies, to assess the influence of administrative practices on students’ performance in business studies, to investigate the influence of teacher related factors on students’ performance in business studies.The study employed descriptive survey research design. The study targeted form 3students, 927 students, and all the 18 teachers of business studies and all the 12 principals in public secondary school in Emurua Dikirr Sub-County. However, the sample size included 93 students, 6 teachers of business studies and 4 principals of the participating schools. Purposive sampling technique wasused to allocate and sample the schools to participate in the study. Simple random sampling technique was also used to select the93 participating students. All the 4 principals and 6 teachers of business studies were selected purposively from public secondary schools in Emurua Dikirr sub-county participating in this study.
Questionnaires were used to collect data. These included the principals’ questionnaire, the teachers’ questionnaire and the students’ questionnaire. Statistical package for social sciences (SPSS) version 21was used in data analysis.Tables and figures were used to present the analyzed data. The findings of the study revealed that, teaching and learning resources were inadequate and hence affected students’ performance in business studieslargely. The study also revealed that the influence of administrative practices on students’ performance in business studies were strongly positive have effectsand similarly, teacher related factors had a statistically influence on students’ performance in business studies. The study also recommends that, principals should intensify the routine checking of professional records by teachers in business studies. This is to ensure adherence to the requirements of the professional records. This will ensure relevant content are taught leading to improved performance