Designing and Evaluating a Digital Science Lab for Secondary Schools

Thesis Abstract

The increasing integration of digital technologies into science education has underscored the urgent need to develop innovative learning environments that enhance science comprehension and practical skills among secondary school students. This study addresses the challenge of limited access to functional, engaging, and pedagogically effective science laboratories by designing, implementing, and evaluating a digital science lab tailored for secondary education contexts. The primary aim is to investigate the effectiveness of a digitally simulated science laboratory on students’ science achievement, practical skills development, and motivation. The study also seeks to assess teachers’ perceptions and the logistical feasibility of integrating such digital labs into existing curricula. To achieve these objectives, a mixed-methods research design was adopted, combining quantitative experimental and qualitative approaches. The quantitative component employed a quasi-experimental pretest-posttest control group design involving a total of 240 senior secondary school students from six schools, with 120 students assigned to the experimental group and 120 to the control group. The sample was selected through stratified random sampling to ensure representativeness across gender and school type. The digital science lab was developed based on the principles of constructivist learning theory and cognitive load theory, integrating interactive simulations, virtual experiments, and real-time feedback mechanisms. Data collection instruments included standardized science achievement tests, practical skills assessment rubrics, motivation questionnaires, and semi-structured interview guides for teachers. Validity and reliability of instruments were established through expert validation and pilot testing, with Cronbach’s alpha coefficients exceeding 0.85 for all quantitative measures. Quantitative data were analyzed via ANCOVA to determine the effect of the digital lab on achievement and motivation, while practical skills were assessed using rubric scoring and analyzed through descriptive statistics. Qualitative data from interviews underwent thematic analysis to explore teachers’ perceptions, with coding conducted independently by two researchers to ensure consistency. Expected findings are anticipated to demonstrate significant improvements in science achievement, practical skills, and motivation among students exposed to the digital science lab compared to their counterparts in traditional settings. It is also expected that teachers will perceive the digital lab as a valuable pedagogical tool that promotes active learning and student engagement. The integration of constructivist principles is hypothesized to facilitate deeper conceptual understanding and skill acquisition, while the cognitive load management features are expected to enhance learner efficacy. The main contribution of this research lies in providing empirical evidence on the pedagogical effectiveness and practical feasibility of digital science laboratories in secondary education, thus filling existing gaps related to technology integration, practical skills assessment, and motivation in science learning. The research extends current theoretical frameworks by applying constructivist and cognitive load theories within a digital simulation context, offering a model for scalable implementation across varied educational settings. Concluding this study, it is recommended that education policymakers and school administrators incorporate digital science laboratories into science curricula to promote experiential and inquiry-based learning. Further, professional development programs should be designed to equip teachers with the necessary skills for effective integration. Future research could explore longitudinal impacts, cost-benefit analyses, and the adaptation of digital labs for other scientific disciplines, thereby advancing the broader discourse on technology-enhanced science education.