The purpose of this study was to test experimentally the efficacy of the ancient advice that speakers should use previews and reviews. Each of four groups was presented a version of an audio-taped speech on listening. The speech was identical for each group in all respects but one: group 1 heard the speech with preview only; group 2, preview and review; group 3, review only; and group 4, neither. Analysis of scores on a post-test of comprehension indicated no significant differences between any of the four groups. (Author)