Developing an Instrument to Assess Pedagogical Content Knowledge for Evolution

Autor/inn/en	Becerra, Beatriz; Núñez, Paola; Vergara, Claudia; Santibáñez, David; Krüger, Dirk; Cofré, Hernán
Titel	Developing an Instrument to Assess Pedagogical Content Knowledge for Evolution
Quelle	In: Research in Science Education, 53 (2023) 2, S.213-229 (17 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0157-244X
DOI	10.1007/s11165-022-10042-0
Schlagwörter	Evolution; Science Instruction; Pedagogical Content Knowledge; Construct Validity; Reliability; Biology; Science Teachers; Science Tests; Knowledge Base for Teaching; Scoring Rubrics; Specialists; Teacher Attitudes; Questionnaires; Item Analysis + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Pädagogische Kompetenz; Reliabilität; Biologie; Science; Teacher; Teachers; Science teacher; Wissenschaft; Lehrer; Lehrerin; Lehrende; Teaching theory; Theory of teaching; Unterrichtstheorie; Scoring formulas; Auswertungsbogen; Lehrerverhalten; Fragebogen; Itemanalyse
Abstract	Despite the importance of evolution to understand biology, there is significant evidence that many biology teachers have difficulties to successfully teach this topic. The purpose of this study is to describe procedures by which a paper-and-pencil instrument to assess teachers' pedagogical content knowledge for evolution (PCK[subscript evo]) was developed and validated. The instrument was created to measure the components proposed in the model of Magnusson et al. (1999), except for the orientations. The creation of the questionnaire was carried out through eleven steps: (1) conceptualization, (2-4) creation of items and rubric reviewed by experts (focus on content and construct validity), (5-7) piloting a 32-item questionnaire to 10 biology teachers (focus on face and construct validity and reliability), (8-10) piloting a 16-item questionnaire to 61 biology teachers (focus on discriminant and construct validity and reliability), (11) application of a different instrument (CoRe interview) to four teachers (focus on criterion validity). The final version of the questionnaire (which includes three PCK components) showed in a Rasch analysis for the reliability of the items ([alpha] = 0.90) and persons ([alpha] = 0.81) adequate values. When applying the final version of the questionnaire, there is also evidence of discriminant validity (differences between two groups of teachers with or without professional development in evolution education). The contributions of the PCK[subscript evo] instrument for research topics and evolution teaching are discussed. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01