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Direct linkYeh, Kuan-Hue; She, Hsiao-Ching – Computers & Education, 2010
The purpose of this study is to examine the difference in effectiveness between two on-line scientific learning programs--one with an argumentation component and one without an argumentation component--on students' scientific argumentation ability and conceptual change. A quasi-experimental design was used in this study. Two classes of 8th grade…
Descriptors: Experimental Groups, Control Groups, Persuasive Discourse, Chemistry
Carlson, James E.; Jirele, Tom – 1992
Some results are presented relating to the dimensionality of the 1990 National Assessment of Educational Progress (NAEP) mathematics item-response data. Based on theoretical considerations, practical limitations, and previous research, two procedures were selected for study: full information factor analysis as implemented in the TESTFACT computer…
Descriptors: Comparative Testing, Computer Software Evaluation, Factor Analysis, Grade 4
