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Manna, Venessa; Yoo, Hanwook; Monfils, Lora – ETS Research Report Series, 2018
In this study, we assessed the invariance in the factor structure underlying English-language proficiency for two groups of adolescent learners in Japan: students in middle school (ages 13-15 years) and students in high school (ages 16-18 years). Language proficiency was measured using the "TOEFL Junior"® Comprehensive test, an…
Descriptors: Testing, Language Tests, English (Second Language), Performance
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Okumura, Taichi – Educational and Psychological Measurement, 2014
This study examined the empirical differences between the tendency to omit items and reading ability by applying tree-based item response (IRTree) models to the Japanese data of the Programme for International Student Assessment (PISA) held in 2009. For this purpose, existing IRTree models were expanded to contain predictors and to handle…
Descriptors: Foreign Countries, Item Response Theory, Test Items, Reading Ability