This study investigated the effects of prefatory statements (advance organizers) on the listening comprehension of 310 Cliffside Park, New Jersey, fourth and fifth graders. Six null hypotheses were tested: two examining the differences in listening comprehension between students of both grade levels who used and did not use prefatory statements; two testing the effect of prefatory statements on subjects with above average, average, and below average reading comprehension levels; and two examining the relationship between subjects' sex and the use and nonuse of prefatory statements. Listening comprehension was measured by using four exercises developed by the experimenter. Data revealed no significant difference in listening comprehension between students using prefatory statements and those not using prefatory statements, with regard to grade level, reading comprehension level, or sex of subject. (Author/KS)