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Direct linkYan, Yaw Kai; Subramaniam, R. – Chemistry Education Research and Practice, 2018
This study focused on grade 12 students' understanding of reaction kinetics. A 4-tier diagnostic instrument was developed for this purpose and administered to 137 students in the main study. Findings showed that reaction kinetics is a difficult topic for these students, with a total of 25 alternative conceptions (ACs) being uncovered. Except for…
Descriptors: Diagnostic Tests, Kinetics, Grade 12, Chemistry
Sreenivasulu, Bellam; Subramaniam, R. – International Journal of Science Education, 2013
This study explored undergraduate students' understanding of the chemistry topic of thermodynamics using a 4-tier diagnostic instrument, comprising 30 questions, and follow-up interviews. An additional objective of the study was to assess the utility of the 4-tier instrument for use in studies on alternative conceptions (ACs) as there has been no…
Descriptors: Foreign Countries, Undergraduate Students, Chemistry, Thermodynamics
