Speeded C-Tests: Some Psychometric Analyses

Abstract : The C-test as a measure of first and second language proficiency suffers from ceiling effect. That is, the C-test is very easy for native speakers and for advanced second language learners and many examinees obtain full scores. Therefore, the test cannot distinguish among advanced learners or native speakers. Grotjahn, Schlak, and Aguado (2010) and Grotjahn (2010) suggested Speeded C-test or Standard-C-test as a remedy for this problem. They argued that if C-test is administrated under time constraint it can better differentiate among advanced learners and native speakers. In this study we aimed to compare the psychometric characteristics of speeded and standard C-test and investigate the relationship between standard and speeded C-test and reading comprehension. One-hundred Iranian undergraduate EFL learners studying at Islamic Azad University and Tabaran University of Mashhad, Khorasan Razavi, Iran, were selected to take part in this research. A standard (power) C-test, a speeded C-test, and a reading comprehension test were given to the students. Findings revealed that both speeded C-test and standard C-test could measure reading comprehension ability but standard C-test is a better predictor of reading comprehension ability and enjoys higher reliability. Exploratory factor analysis of the data resulted in a one-factor solution. All C-test passages (speeded and power) and reading comprehension passages loaded heavily on the single extracted factor. Nevertheless, power C-test passages had higher loadings compared to speeded passages.
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[Research Report] Islamic Azad University. 2017
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Anita Fadaeipour. Speeded C-Tests: Some Psychometric Analyses. [Research Report] Islamic Azad University. 2017. 〈hprints-01510897〉

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