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ERIC Number: EJ1052739
Record Type: Journal
Publication Date: 2015-Mar
Pages: 26
Abstractor: As Provided
Reference Count: N/A
ISSN: ISSN-0022-4308
Development and Validation of a Measure of Elementary Teachers' Science Content Knowledge in Two Multiyear Teacher Professional Development Intervention Projects
Maerten-Rivera, Jaime Lynn; Huggins-Manley, Anne Corinne; Adamson, Karen; Lee, Okhee; Llosa, Lorena
Journal of Research in Science Teaching, v52 n3 p371-396 Mar 2015
Using data collected from two multiyear teacher professional development projects employing randomized control trials, this study describes the development and validation of a paper-based test of elementary teachers' science content knowledge (SCK). Evidence of construct validity is presented, including evidence on internal structural features using Rasch measurement models. Results from 183 treatment group and 176 control group teachers from Project 1 demonstrated that the SCK test had acceptable person reliability at baseline; at later time points the test was easy for the teachers and person reliability was below acceptable. Results from Project 1 informed changes made to the test for use in Project 2, including an increase in the difficulty level and the development of two equated forms. Results from the 148 treatment and 139 control teachers from Project 2 demonstrated that the test had acceptable reliability across two time points and was a better match to teachers' SCK.
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Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A