Abstract
This study involves the development of a three-tier diagnostic test to measure high school students’ understanding of states of matter concepts. The States of Matter Diagnostic Test (SMDT) is a 19-item three-tier diagnostic test consisting of three-tier items for assessing students’ understanding of states of matter concepts. The SMDT was administered to 195 10th grade high school students in the pilot study and 102 10th grade high school students in the main study. Cronbach alpha reliability indexes for the SMDT were estimated to be .78 and .83 for the pilot and main study, respectively. Point-biserial coefficients ranged from .20 to .69 with an average of .44 for the pilot study and with an average of .49 for the main study.
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Article Type: Research Article
EURASIA J Math Sci Tech Ed, Volume 10, Issue 5, 2014, 509-521
https://doi.org/10.12973/eurasia.2014.1128a
Publication date: 15 Dec 2014
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