Abstract(頁1);1 Introduction(頁1);2 Situational Factors for the Effect of Feedback on Learning(頁1-2);3 Feedback and Self-Regulated Learning Processes(頁2-3);4 Person-Centered Approach to Studying Feedback and Achievement(頁3-4);5 Methods(頁4-6);6 Results(頁6-10);7 Conclusion and Direction for Future Research(頁10-11);Acknowledgement(頁11);References(頁11-13)