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Measurement of Korean EFL college st...

The University of Texas at Austin.

Measurement of Korean EFL college students' foreign language classroom speaking anxiety: Evidence of psychometric properties and accuracy of a computerized adaptive test (CAT) with dichotomously scored items using a CAT simulation.

紀錄類型:	書目-電子資源 : 單行本
正題名/作者:	Measurement of Korean EFL college students' foreign language classroom speaking anxiety: Evidence of psychometric properties and accuracy of a computerized adaptive test (CAT) with dichotomously scored items using a CAT simulation./
作者:	Yang, Tae-Kyoung.
面頁冊數:	245 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-12, Section: A, page: 4365.
Contained By:	Dissertation Abstracts International66-12A.
標題:	Education, Tests and Measurements. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3204228
ISBN:	9780542500497

Measurement of Korean EFL college students' foreign language classroom speaking anxiety: Evidence of psychometric properties and accuracy of a computerized adaptive test (CAT) with dichotomously scored items using a CAT simulation.
Yang, Tae-Kyoung.

Measurement of Korean EFL college students' foreign language classroom speaking anxiety: Evidence of psychometric properties and accuracy of a computerized adaptive test (CAT) with dichotomously scored items using a CAT simulation. - 245 p.

Source: Dissertation Abstracts International, Volume: 66-12, Section: A, page: 4365.

Thesis (Ph.D.)--The University of Texas at Austin, 2005.

Assessment of foreign language speaking anxiety is considered pertinent to assisting practitioners to reduce learners' speaking anxiety. Computerized adaptive testing (CAT) of severity of speaking anxiety has potential advantages over conventional paper-and-pencil (P&P) tests in terms of efficiency, precision, adaptiveness and real-time severity monitoring.

ISBN: 9780542500497Subjects--Topical Terms:

1000005823
Education, Tests and Measurements.

Measurement of Korean EFL college students' foreign language classroom speaking anxiety: Evidence of psychometric properties and accuracy of a computerized adaptive test (CAT) with dichotomously scored items using a CAT simulation.
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245 1 0 $a Measurement of Korean EFL college students' foreign language classroom speaking anxiety: Evidence of psychometric properties and accuracy of a computerized adaptive test (CAT) with dichotomously scored items using a CAT simulation.
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500 $a Source: Dissertation Abstracts International, Volume: 66-12, Section: A, page: 4365.
500 $a Adviser: Hua-Hua Chang.
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520 $a Item response theory (IRT) was applied to obtain item characteristics (i.e. anxiety severity and discrimination parameter) and develop an item pool that can be used for a computerized adaptive test to measure severity of speaking anxiety.
520 $a Based on two-parameter logistic IRT model, the study analyzed responses to a newly constructed English speaking anxiety inventory from a sample of 949 Korean EFL undergraduate students. The study used Principal Component Analysis and DIMTEST in a confirmatory mode to account for construct validity and conducted a computer simulation of CAT to investigate whether a CAT or a P&P test can more accurately estimate test-takers' severity levels of English speaking anxiety, conditional on their true severity of speaking anxiety.
520 $a Examining construct validity, the results indicated that a principal component analysis (PCA) of the data revealed that 23 percent of the total variation in the data was accounted for by the first component, which exceeds the 20 percent criterion established by Reckase (1979) for assuming unidimensionality and that Cognitive Speaking Anxiety (CSA) items were not dimensionally separable from the Psychosomatic Speaking Anxiety (PSA) items. The study established a pool of 142 items that can be used for a computerized adaptive speaking anxiety severity test. Results of a CAT simulation indicate that a 20-item simulated fixed-length CAT provides better accuracy than that of a P&P test.
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