數理資優鑑定實作評量試題研發暨效度評估

Conducting the Performance Assessment for Mathematically and Scientifically Giftedness Identification

本研究旨在發展適用數理資優鑑定的實作評量，以提供有效篩選數理學術性向資賦優異學生之測量工具。研究者邀集數學與自然科學領域專家以及資優班現場教師共同編製數理領域實作評量，共11題。首先，以49位國中一年級學生進行預試，依各試題內部一致性之結果挑選出六道題目（數學科與自然科各三題）為正式試題。接著，以150名學術性向測驗百分等級97以上的國中一年級學生進行正式施測及信效度檢驗。結果發現，各試題內部一致性信度介於.46至.96，數學與自然分測驗分別為.77與.61，整體實作評量則為.77。數學科與自然科之相關係數為.40，顯示各科具有良好區別性。研究者採用受測者下一學年之學科成績為效標變項，分析結果指出：實作評量分數可顯著正向預測數學科（r＝.29～.40）與自然科成績（r＝.20～.25），表示本實作評量能有效預測受測者後續在數理科目之學業表現。本研究亦於文末針對測驗信效度以及未來相關應用提出討論與建議。

The study is aimed to conduct the performance assessment for identifying the mathematically and scientifically giftedness (PAMSG). 11 items of performance assessment was developed by the experts and gifted class teachers in the mathematics and sciences field. 49 junior high students participated the pre-test of PAMSG. Six items was selected as formal test according to the higher internal-consistent coefficients. We recruited 150 junior high students whose score of scholastic aptitude test above 97 percentage rank join the formal test. As for the reliability, the coefficients of internal consistency for mathematical and scientific sub-test were .77 and .61, for integrated test was .77. The correlation coefficients between the two sub-tests was .40, indicating the internal discriminant validity. The score of PAMSG positively predicted the subsequent academic performance of the mathematics and sciences discipline. We have discussed the reliability and validity of the PAMSG, and provided the potential application.