Peer feedback,as a common student-student interaction activity in the teaching and learning process,has a positive effect on cultivating students'higher-order thinking and stimulating learning motivation.This study adopts a meta-analytic approach to comprehensively sort out,analyze and evaluate 43 empirical studies at home and abroad on the impact of peer feedback on students'learning effects,so as to understand the practical application effects of peer feedback on students'learning.It is found that peer feedback has more than moderate facilitating effect on improving students'learning effectiveness.An in-depth moderating variable analysis from the dimensions of experimental characteristics and feedback characteristics shows that experimental characteristics such as experimental period,research subjects and scale do not affect the facilitating effect of peer feedback on students'learning effectiveness,but different types of feedback have significant moderating effect on the effectiveness of peer feedback.
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