This study investigated the effects of looking back at relevant sections of previously read text, a strategy that is frequently proposed as useful when comprehension fails while studying a text. The subjects, more than 100 freshmen, read 24 pages of text and answered inserted comprehension questions. Approximately half of the subjects were branched back to reread prerequisite information when it was later needed but had not been fully understood by those subjects. Subjects receiving lookbacks showed better comprehension of later information dependent upon the prerequisite information. It was concluded that the training of natural lookbacks during study holds promise as a means of improving students' study behaviors. (Author/MKM)