ERIC Number: EJ1116258
Record Type: Journal
Publication Date: 2016-Oct
Abstractor: As Provided
Diagnostic Appraisal of Grade 12 Students' Understanding of Reaction Kinetics
Yan, Yaw Kai; Subramaniam, R.
Chemistry Education Research and Practice, v17 n4 p1114-1126 Oct 2016
The study explored grade 12 students' understanding of reaction kinetics, a topic which has not been extensively explored in the chemistry education literature at this level. A 3-tier diagnostic instrument with 11 questions was developed--this format is of very recent origin and has been the subject of only a handful of studies. The findings reveal that reaction kinetics is not an easy topic for the students to understand. A total of 23 alternative conceptions (ACs) as well as some indication of their strengths and other confidence-related measures have been documented for the students (N = 137)--most of these ACs have not been reported before. When the overall scores of the students in the diagnostic test are ranked, it was found that there are a number of differences in the ACs held by students in the upper and lower 25% of the sample. While most of the ACs held by these groups are common to the overall sample, a number of these are not found in the overall sample. The findings further underscore the diagnostic utility of the 3-tier format. Some implications of the findings are discussed.
Descriptors: Grade 12, Motion, Scientific Concepts, Scores, Science Tests, Kinetics, Test Construction, Difficulty Level, Psychometrics, Graphs, Knowledge Level, Foreign Countries
Royal Society of Chemistry. Thomas Graham House, Science Park, Milton Road, Cambridge, CB4 0WF, UK. Tel: +44-1223 420066; Fax: +44-1223 423623; e-mail: email@example.com; Web site: http://www.rsc.org/cerp
Publication Type: Journal Articles; Reports - Research
Education Level: Grade 12; Secondary Education; High Schools
Authoring Institution: N/A
Identifiers - Location: Singapore