Abstract: As an important metacognitive judgment, Judgment of learning (JOL) is the prediction about the future performance of learned materials. Its mechanism and accuracy are the key issues in the study of judgment of learning. Researchers have advanced many theories to illuminate these two issues from different perspectives. Koriat’ cue-utilization framework summarized the previous findings and provided a significant advance in understanding how people make judgment of learning. However, Koriat’ framework also faces new challenges. The limitations of the previous studies and the suggestions for future research are also put forward.

Key words: judgment of learning, mechanism, accuracy, delayed-JOL effect