{"product_id":"c-test-construct-validation-a-rasch-modeling-approach-3639353161","title":"C-Test Construct Validation: A Rasch Modeling Approach","description":"\u003cp\u003e\u003cstrong\u003eISBN:\u003c\/strong\u003e 3639353161\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuthor:\u003c\/strong\u003e Baghaei, Purya\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/p\u003e\u003cp\u003eC-Test is an economical test of general language proficiency in the first and second language. Ease of construction and scoring coupled with its cost- effectiveness have made C-Test a useful instrument for institutions which need a quick placement instrument and second language researchers who need a measure of learners' general language proficiency. The present book addresses C-Test construct validity by using the latest developments in modern measurement theory. Probing into the dimensionality of C-Test is the main focus of the book. Rasch modeling is used to study different aspects of C- Test construct and to clarify the dimensionality issue. In this endeavor exploratory factor analysis, Rasch rating scale model, differential person and item functioning (DIF\/DPF), principle component analysis of residuals (PCAR) and item and person measures invariance are used. The results should help C-Test users make informed decisions when embarking on using C-Test for their next testing project. It should also be useful to language testing researchers who want to investigate some ripe areas of research in C-Test.\u003c\/p\u003e","brand":"Mia Karts","offers":[{"title":"Default Title","offer_id":68122690814240,"sku":"NEW3639353161","price":124.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/7426\/3840\/files\/51mrYWeXcfS.jpg?v=1793721875","url":"https:\/\/miakarts.com\/products\/c-test-construct-validation-a-rasch-modeling-approach-3639353161","provider":"Miakarts Books","version":"1.0","type":"link"}