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Direct linkSawaki, Yasuyo; Sinharay, Sandip – Language Testing, 2018
The present study examined the reliability of the reading, listening, speaking, and writing section scores for the TOEFL iBT® test and their interrelationship in order to collect empirical evidence to support, respectively, the "generalization" inference and the "explanation" inference in the TOEFL iBT validity argument…
Descriptors: English (Second Language), Language Tests, Second Language Learning, Computer Assisted Testing
Download full textSinharay, Sandip; Haberman, Shelby J.; Jia, Helena – Educational Testing Service, 2011
Standard 3.9 of the "Standards for Educational and Psychological Testing" (American Educational Research Association, American Psychological Association, & National Council for Measurement in Education, 1999) demands evidence of model fit when an item response theory (IRT) model is used to make inferences from a data set. We applied two recently…
Descriptors: Item Response Theory, Goodness of Fit, Statistical Analysis, Language Tests
Sinharay, Sandip; Dorans, Neil J.; Liang, Longjuan – Educational Testing Service, 2009
To ensure fairness, it is important to better understand the relationship of language proficiency to standard psychometric analysis procedures. This paper examines how results of differential item functioning (DIF) analysis are affected by an increase in the proportion of examinees who report that English is not their first language in the…
Descriptors: Test Bias, Language Proficiency, English (Second Language), Measurement
