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Direct linkKyle, Kristopher; Crossley, Scott A.; McNamara, Danielle S. – Language Testing, 2016
This study explores the construct validity of speaking tasks included in the TOEFL iBT (e.g., integrated and independent speaking tasks). Specifically, advanced natural language processing (NLP) tools, MANOVA difference statistics, and discriminant function analyses (DFA) are used to assess the degree to which and in what ways responses to these…
Descriptors: Construct Validity, Natural Language Processing, Speech Skills, Speech Acts
Jang, Eunice Eunhee; Roussos, Louis – International Journal of Testing, 2009
In this article we present results of a Differential Item Functioning (DIF) study using Shealy and Stout's (1993) multidimensionality-based DIF analysis framework. In this framework, differences in test score distributions across different groups of examinees may be a result of multidimensionality if secondary dimensions (not the primary dimension…
Descriptors: Test Bias, Vocabulary, English (Second Language), Scores
