本研究旨在探討使用Kahoot! 線上即時反饋系統融入綜合高中經濟學課程對學生的專注力與學習成效之影響。本文採實驗研究法，利用改編之「學生專注力量表」及「學生對Kahoot! 看法問卷」進行施測，研究結果發現，學生的專注力在施測之後有顯著的提升，尤其以低分組女生的學習成效最為顯著。在Kahoot! 看法問卷組成的三個構面裡，最受重視的構面為同儕的知己知彼，學生透過Kahoot! 系統進行測驗，不僅可以瞭解自己的學習情形，更能夠立即得知自己在同儕中的相對位置，是提升學習意願最主要的動力來源。

This study explores the impact of the Kahoot! online interactive response system on students’ concentration and learning outcomes. The experimental research method, uses an adapted “Student Concentration Scale” and “Student Questionnaire on Kahoot!”. The results show students’ concentration is significantly improved the experiment, and the learning outcomes of this group of girls with low grades will increase significantly. “Knowing Oneself and Each Other” is the most valued factor within the three factors formed by the “Student Questionnaire on Kahoot!”. It is shown that Kahoot! enhances willingness to learn. Students can both realize their own learning performance and see their relative position among peers.