Students’ understanding of matter: the effect of reasoning ability and grade level

摘要: This study aims at investigating the effect of grade level on students’ achievement in matter concept and reasoning abilities, when their test anxiety was controlled. The data collected from 8th, 10th 11th students by administration Matter Concept Test, Test Logical Thinking, Motivated Strategies for Learning Questionnaire. results revealed that there a significant favor linear combination abilities significantly related to achievement. In graders did better than 8th either. only exception this general observation graders’ performance small number questions, which topics were taught nationally examined grade. It seems likely, therefore, more chemistry student is he/she likely be, except if topic while it reasonably fresh student's mind are be carried out 2-3 years later. [Chem. Educ. Res. Pract., 2006, 7 (1), 22-31]