Do Subscores from a Summative English Listening Test Have Added Value?

서지정보

· 발행기관 : 한국교육평가학회
· 수록지 정보 : 교육평가연구 / 27권 / 1호 / 87 ~ 107페이지
· 저자명 : 최세일

초록

This study was to explore the potential for diagnostic subsocres from a summative English proficiency test. From an English listening comprehension test that consisted of 100 items with four subdomains, three different sizes of test (20, 32, and 40 item tests) with the same four subdomains were constructed to simulate subscore properties of tests in practice. The number of items for the subdomains of the three simulated tests were 5, 8, 10, respectively. Statistical analyses showed that the raw subscroes had unacceptable reliabilities but the subsequent score augmentation technique increased the reliabilities remarkably. However, the study also found out that such gains were obtained by heavily regressing individual subscores toward the profiles of the group means, resulting in very similar subsocres, which in turn questioned the validity of such augmented subscores. The study searched for the causes of the problem and discussed implications for constructing a test that can provide diagnostic information.

참고자료

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