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Applying Factor Analysis for Assessing Knowledge Structure of Students in Grade 10: The Subject of Redox Reaction

Authors :
Tang, Wenxiu
Zhu, Xintong
Qian, Yangyi
Source :
Journal of Baltic Science Education. 2022 21(4):680-693.
Publication Year :
2022

Abstract

Redox reaction is an important concept in chemistry, and a well-organized knowledge structure of redox reaction is beneficial for concept learning. This study investigated the knowledge structure regarding redox reaction from 459 Grade 10 students. The pool of 15 redox reaction concepts was developed by content analysis, questionnaire survey, and interview. Six initial competing models with 15 concepts were identified via exploratory factor analysis (EFA) and paper-pencil test. Confirmatory factor analysis (CFA) was conducted to test and modify the six competing models according to the rating data of the students. As a result, six modified models fit the data well. However, the high inter-factor correlations indicate that the two- and three-factor models are the students' knowledge structures of redox reaction. The two-factor model is comprised of two distinct but correlated factors: the process of redox reaction and metrology. The three-factor model is comprised of three factors: the process of redox reaction, reaction ability, and metrology. The finding inflects the abstract relationships between the concepts related to redox reaction in students' minds.

Details

Language :
English
ISSN :
1648-3898 and 2538-7138
Volume :
21
Issue :
4
Database :
ERIC
Journal :
Journal of Baltic Science Education
Publication Type :
Academic Journal
Accession number :
EJ1363791
Document Type :
Journal Articles<br />Reports - Research