Assessing Teachers’ Educational Knowledge
Construct Specification and Validation Using Mixed Methods
Abstract
This paper presents two studies adding validity evidence to the assessment of educational knowledge (EK) measured by a recently developed test. The first study compared the test scores of a large sample of graduates from academic teacher education with those of a sample of first-semester teacher students. Results indicate higher scores for graduates in the majority of the tests six domains. Additionally, we gained validity evidence based on response processes by conducting 46 cognitive interviews in Study 2. Participants with different professional backgrounds stated their response strategies while taking the knowledge test. Among other results, analyses revealed that graduates and advanced students in teacher education were often familiar with item topics and solved items mostly by retrieving academic knowledge from memory. Overall, results add to previously gained evidence suggesting that test scores can be taken to measure EK mainly gained by university studies.
Im vorliegenden Beitrag werden zwei Studien vorgestellt, die Hinweise auf die Validität der Messung von bildungswissenschaftlichem Wissen anhand eines neu entwickelten Tests geben. Studie 1 verglich eine große Stichprobe von Referendar(inn)en mit einer Stichprobe von Lehramtsstudierenden im ersten Semester. Dabei wurden von Referendar(inn)en höhere Werte auf der Mehrheit der sechs Testskalen erzielt. In Studie 2 war die Untersuchung von kognitiven Prozessen während der Testbearbeitung von Interesse. Es wurden 46 kognitive Interviews durchgeführt, bei denen Teilnehmer(innen) mit unterschiedlichem professionellen Hintergrund ihre Antwortstrategien beschrieben, während sie den Wissenstest bearbeiteten. Qualitative Analysen zeigten beispielsweise, dass Teilnehmer(inne)n mit abgeschlossenem oder fortgeschrittenem Lehramtsstudium die Themen der Aufgaben häufig bekannt waren und sie richtig gelöste Aufgaben mehrheitlich mit Universitätswissen lösten. Insgesamt weisen die Ergebnisse darauf hin, dass die Testwerte im Sinne universitären bildungswissenschaftlichen Wissens interpretiert werden können.
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