Do You See What I-SEA? A Rasch Analysis of the Psychometric Properties of the Inventory of Student Evolution Acceptance

Autor/inn/en	Sbeglia, Gena C.; Nehm, Ross H.
Titel	Do You See What I-SEA? A Rasch Analysis of the Psychometric Properties of the Inventory of Student Evolution Acceptance
Quelle	In: Science Education, 103 (2019) 2, S.287-316 (30 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Sbeglia, Gena C.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0036-8326
DOI	10.1002/sce.21494
Schlagwörter	Student Attitudes; Scientific Attitudes; Evolution; Attitude Measures; Item Response Theory; Undergraduate Students; Psychometrics; Test Validity + Suchen Sie Ihr Suchwort? Schülerverhalten; Item-Response-Theorie; Psychometry; Psychometrie; Testvalidität
Abstract	Theoretical perspectives and empirical research suggest that acceptance of evolution may be contingent upon what is evolving (e.g., plants vs. humans) and the scale of change (microevolution vs. macroevolution). The Inventory of Student Evolution Acceptance (I-SEA) is the only instrument designed to measure acceptance at different evolutionary scales and in different evolutionary contexts. Nevertheless, current validity testing for this instrument remains limited and grounded in Classical Test Theory. In this study, we examine patterns of evolution acceptance using the I-SEA instrument in a large sample of undergraduates (n > 2,000 participants) from six semesters of an evolution-focused biology class. We examine three research questions: (RQ1) Does Rasch analysis support the psychometric properties of the I-SEA discussed by Nadelson and Southerland? (RQ2) How variable are I-SEA measures across semesters, and are they sensitive to evolution instruction? (RQ3) Are I-SEA measures comparable to evolution acceptance measures produced by the Generalized Acceptance of EvolutioN Evaluation? Our empirical results support theoretical claims that evolution acceptance does not appear to be a unidimensional construct among novice learners. We identify limitations of the I-SEA and recommend multiple modifications to improve instrument quality. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01