Abstract:
The role of Chemistry education is to help in the development of scientific attitude in the learner. The
students’ performance in Chemistry at the national examinations in Kenya has remained poor, despite the
importance attached to the subject. Many factors influence this performance, one being learners' chemistry
self-concept. Computer-Based Instruction may help address the problem of student’s negative chemistry
self-concept as most educational institutions take learning online due to COVID -19 pandemic. In an
attempt to address this, this study aimed at finding out the effects of Computer-Based Simulations (CBS) on
students’ chemistry self-concept. The study involved quasi-experimental research using Solomon Four
Non- Equivalent Control Group Design. Sample size was 175 students. Instrument of data collection was
Chemistry Self-Concept Questionnaire (CSCQ). Results revealed that there is statistically significant
difference in the chemistry self-concept of students taught through CBS and those taught through Regular
Teaching Methods (RTM). Students taught through CBS acquired a higher level of chemistry self-concept
than those taught through RTM.