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電腦適性測驗題目曝光率之模擬研究

The Simulating Study of the Item Exposure Rate in Computerized Adaptive Tests

摘要


電腦適性測驗在實際實施後,最受注目的議題便是題目的過度曝光,題目的過度曝光表示大部分的受測者施測過此題目,當受測者重新施測,則容易施測到相同的題目使得測驗的安全性與公平性產生危機。 本研究採用五種選題方法,分別為最接近偏移難度法、區間式最大訊息法、KL訊息法、鄰近法、與考慮b參數的a分層法,分別討論在不同題庫樣式下對於曝光率均勻度與能力估計誤差的表現,結果發現,各適性選題法依曝光率均勻度與能力估計精準度的表現上可分為三大類:一是有較高估計精準度的區間式最大訊息法與KL訊息法,一是有較均勻題目曝光的最接近偏移難度法與考慮b參數的a分層法,一是對均勻題目曝光率與估計精準度較折衷的鄰近法。

並列摘要


For operational computerized adaptive tests, the most important issue is the overexposure item rates. The item having overexposure rate means most of the examinees tested it. When the examinees retest, they tend to test the same items, which leads to serious test security and equity risks. In this study, discuss the effects of the five item selection criterions-minimum offset difficulty, maximum interval information, KL information, NN criterion, and STR-B-were compared with respect to the precision of the trait estimation and the effect of the item usage at the same item banks. In the result, by the exposure rate and the precision the selection criterions could separate to three groups: maximum interval information and KL information criterions which having more precision of estimation; minimum offset difficulty criterion and STR-B which having more uniform exposure rates; NN criterion which balancing the estimation precision and effective item usage.

參考文獻


王寶墉(1995)。現代測驗理論。台北市:心理。
李茂能(2000)。中文電腦化適性測驗系統之應用與評鑑。台北市:文景。
洪碧霞、吳裕益、吳鐵雄、陳英豪()。,未出版。
陳俊宏(2004)。電腦適性測驗之模擬研究。國立台中師範學院。
陳麗如(1998)。電腦化適性測驗之題庫品質管理策略。國立臺灣師範大學。

被引用紀錄


張俊欽(2006)。以a-鄰近法為選題策略之電腦化適性測驗系統〔碩士論文,亞洲大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0118-0807200916282755
詹崇義(2012)。華語文聽力電腦化適性測驗成效分析─以CEFR A2 級為例〔碩士論文,亞洲大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0118-1511201215465399

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