APPLYING FACTOR ANALYSIS FOR ASSESSING KNOWLEDGE STRUCTURE OF STUDENTS IN GRADE 10: THE SUBJECT OF REDOX REACTION

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