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Download full textGu, Lin; Turkan, Sultan; Gomez, Pablo Garcia – ETS Research Report Series, 2015
ELTeach is an online professional development program developed by Educational Testing Service (ETS) in collaboration with National Geographic Learning. The ELTeach program consists of two courses: English-for-Teaching and Professional Knowledge for English Language Teaching (ELT). Each course includes a coordinated assessment leading to a score…
Descriptors: Item Analysis, Test Items, English (Second Language), Second Language Instruction
Li, Deping; Oranje, Andreas – ETS Research Report Series, 2007
Two versions of a general method for approximating standard error of regression effect estimates within an IRT-based latent regression model are compared. The general method is based on Binder's (1983) approach, accounting for complex samples and finite populations by Taylor series linearization. In contrast, the current National Assessment of…
Descriptors: Error of Measurement, Regression (Statistics), Trend Analysis, National Competency Tests
Sawaki, Yasuyo; Stricker, Lawrence; Oranje, Andreas – ETS Research Report Series, 2008
The present study investigated the factor structure of a field trial sample of the Test of English as a Foreign Language™ Internet-based test (TOEFL® iBT). An item-level confirmatory factor analysis (CFA) was conducted for a polychoric correlation matrix of items on a test form completed by 2,720 participants in the 2003-2004 TOEFL iBT Field…
Descriptors: Factor Structure, Computer Assisted Testing, Multitrait Multimethod Techniques, Scores
Sheehan, Kathleen M.; Kostin, Irene; Futagi, Yoko – ETS Research Report Series, 2007
This paper explores alternative approaches for facilitating efficient, evidence-centered item development for a new type of verbal reasoning item developed for use on the GRE® General Test. Results obtained in two separate studies are reported. The first study documented the development and validation of a fully automated approach for locating the…
Descriptors: College Entrance Examinations, Graduate Study, Test Items, Item Analysis
