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Assessing the development of high school chemistry students' conceptual and visual understanding of dimensional analysis via supplemental use of a proprietary interactive software program

This study was designed to evaluate the effects of the proprietary software, “Conversionoes,” on students' conceptual and visual understanding of dimensional analysis. The participants in the study were high school general chemistry students enrolled in two public high schools with different demographics (School A and School B) in the Chattanooga, Tennessee, metropolitan area. Using a “treatment group” and a “control group (no treatment), a mixed methods design was used in the data collection and analysis to provide a holistic view of the impact of the software on student learning. The resulting qualitative and quantitative data confirmed that the Conversionoes software enhanced the treatment groups’ conceptual and visual understanding of dimensional analysis. In fact, when all of the quantitative and qualitative data were viewed as a whole, the advantages of integrating Conversionoes into the general chemistry classroom proved to have significant impact on student conceptual and visual understanding of dimensional analysis. This was verified by the quantitative data, which indicated a significant difference between the overall pre-test and post-test scores at School A and School B (p = 0.027, p = 0.028, respectively). The qualitative data showed that students valued their experiences using the Conversionoes software and were able to enhance their knowledge of all aspects of dimensional analysis.