日本語學習的正向情緒(快樂、高興、開心、感到滿足等)能夠促進學習者的自主學習，被視為是提昇能力的原動力。為了瞭解正向情緒的構成要素為何，以台湾北部的T大學日文系以及研究所學生為對象進行訪談，調查文字資料使用KJ法分析。再從結果將日本語學習的正向情緒分成九個類型。以此為主設定43個問題進行問卷調查。之後，再以日文系4年級學生約200人為對象實施問卷調查，將統計分析結果作成「日本語學習的正向情緒尺度」。由此瞭解是哪一種正向情緒因子對日本語能力會有正面的影響。

Positive affects (such as pleasure, joy, happiness and satisfaction) may significantly accelerate students’ spontaneous learning by presenting a motivational force that has the effect of enhancing competency. For a better comprehension of this positive affect, students from the Department of Japanese Language at T University in north of Taiwan were selected to participate in a survey, with the results being analyzed using the KJ methodology. Nine categories of positive affect were subsequently derived. The questionnaire was composed of 43 questions given to 200 senior students in the Department of Japanese Language. A “Positive Emotion Scale of Japanese Language Learning” was later established based on the statistic analysis, identifying a correlation between positive affects with positive impacts on Japanese language competency.