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Elementary to High School Students' Growth over an Academic Year in Understanding Concepts of Matter
Direct linkLiu, Xiufeng – Journal of Chemical Education, 2007
This paper reports findings on the changes in students' understandings of the concept of matter during an academic year, for students from grade 3 through high school chemistry. The instrument for measuring students' understandings of matter consists of three forms: one for grades 3-6, one for grades 7-9, and one for grades 10-12. The three forms…
Descriptors: Chemistry, Scientific Concepts, Elementary School Students, Secondary School Students
Peer reviewedLiu, Xiufeng – Research in Science and Technological Education, 1998
Uses digraphing as methodology to synthesize students' conceptions of natural phenomena in order to identify the structural characteristics of their conceptions. Contains 41 references. (DDR)
Descriptors: Cognitive Processes, Concept Formation, Elementary Secondary Education, Foreign Countries
Download full textLiu, Xiufeng – 1994
Problems of validity and reliability of concept mapping are addressed by using item-response theory (IRT) models for scoring. In this study, the overall structure of students' concept maps are defined by the number of links, the number of hierarchies, the number of cross-links, and the number of examples. The study was conducted with 92 students…
Descriptors: Alternative Assessment, Computer Assisted Testing, Concept Mapping, Correlation
