Reviews the literature on the effect of prior knowledge and text familiarity on document comprehension and usability. Discusses current methods for assessing subjects' topic familiarity. Presents an empirically based method for effectively assessing topic familiarity. Explains that the method includes use of two subject groups and reliance on…

Research discoveries over the past 15 years concerning reading comprehension have had a significant impact on reading instruction, particularly schema theory. This theory, based on prior learning, which states that the reader uses the text to construct a meaning within his or her own mind, affects what teachers can do to help students improve…