張春興吳武典洪有義CHUNG-HSING CHANGWU-TIEN WUand YU-YIH HUNG2019-08-122019-08-121979-06-??http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/80896成就英語科國中生學習困難學習困難訊息的回饋對國中生英語科成就的影響之實驗研究THE EFFECTS OF INFORMATION FEEDBACK OF LEARNING DIFFICULTIES ON JUNIOR HIGH SCHOOL STUDENT'S ENGLISH ACHIEVEMENT