The Establishment and the Applications for the Scaling of English in General Scholastic Ability Test for Ordinary Senior High School Students

Autor: Yang, Shuying, 楊淑媖
Rok vydání: 2012
Druh dokumentu: 學位論文 ; thesis
Popis: 101
The study aims to develop a scaling item bank in High School General Scholastic Ability Test (GSAT) for the subject English. Teachers may apply the scaling item bank as the basic tool to estimate students’ ability positioning, and students may examine their present achievements as references for their GSAT in the future. The process of the research was divided into two phases. Phase1: the researcher formulated questions, organized test papers, and gave pre-tests. The test questions of English were collected from GSAT over the past decades for qualitative analysis. That is, by utilizing the questioning principles generated from the ordinary senior high student English Subject Competence Indicators, and the number/item analysis of test questions, test papers were organized, formulated, and then invested in qualitative analysis. Establishment of the Scaling item bank was revised through corrective feedbacks from the quantitative analysis, the item parameters, (such as: item difficulty parameter, item discrimination parameter, and pseudo-chance parameter), and testees’ ability values. Furthermore, it was developed into a computerized system of scaling item bank. Phase 2: the researcher estimated the efficiency of the system design. The reliability and the validity of the system were examined by comparing the testees’ scaling scores after the pre-tests, their ability values, and scaling scores gained from GSAT for the forthcoming efficacy analysis. The results of the study indicate the followings: 1.Based on the questioning principles generated from the ordinary senior high student English Subject Competence Indicators, in the assessment contents, “understanding and applying often-used lexicon, syntax and matching vocabulary” indicated a major ratio of formulating questions by 26.79%. Meanwhile, “being able to grasp the article content details” showed a ratio of 21.42%. 2.Cronbach’s α coefficients were adopted to analyze the reliability of the high school GSAT English test papers. The validity from a total of 56 questions scored 0.897, which showed fairly reliable internal equity of the item bank. 3.The Correlation coefficients of Criterion-related validity was adopted as the basis to examine the validity in the study. Firstly, the comparison coefficients from students’ pre-tests in the Mock Exam and that from real GSAT tests scored 0.836. Secondly, students’ ability positioning values were compared with their rankings from GSAT. The correlation coefficient scored 0.841. Both correlation coefficients proved the fairly high-level validity of the test item bank and its forecasting capability.
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