The studies above show the range of ways that readers take advantage of the stable structure of text to aid comprehension. In the Bazerman (1985) study, strategic readers with considerable domain knowledge would sometimes progress through the text at a rapid rate, using a single word to skip a vast amount of information. Other times, they would slow considerably, moving back and forth within a text and across texts, to add to their understanding of the field. In other studies (Bayle, 1942; Shebilske and Reid, 1979), readers encountering difficulties with unfamiliar words, syntactic structures, or ideas used the stability of the printed page to slow their rate and regress over passages. None of these processing strategies are available with the transient, linguistic information presented in audio tape or lectures.