Although studies have shown that involving students in decisions that impact their educational outcomes may improve their academic performance, little effort has been put in collating students' views on the appropriate extent of such involvement. Students are key stakeholders and beneficiaries of educational outcomes, as well as determinants of examination results. It is therefore important to study the impact of their inclusion into the school key decision systems. Using data from twelve public day secondary schools in Embu West Sub-County of Kenya, this study attempted to seek the views of students on the effect of their involvement in decision- making on two different fronts: choice of schools in which to enroll and formulation of school rules and disciplinary measures for school rule-violators. It was found that students' involvement in the key decisions of their educational process produces motivation, a sense of ownership and therefore a higher inclination to abide by the set rules, personal drive to meet the individual and collective goals, and an overall higher academic performance. It was recommended that students should be involved at all decision-making levels to the extent that is possible and plausible.