Learning from expository texts: Effects of the interaction of prior knowledge and text structure on responses to different question types

The objective of this study was to verify the effects of the interaction between text structures and prior knowledge on memory and learning front expository texts. It examined the effects of two levels of prior knowledge and two types of mixed structures on a post-reading questionnaire. A total of 119 French-speaking, sixth-grade subjects were selected on the basis of a multiple-choice questionnaire. This questionnaire served to distinguish two groups, one possessing a high level of prior knowledge about the topic covered in the text (HP group), and another having a low level of prior knowledge (LP group). The children's reading ability was evaluated by a cloze test that also served to eliminate children with reading comprehension difficulties from the experimental groups. The subjects in each group were arbitrarily assigned to subgroups. One group read air experimental passage, "The effects of acid rain on maple and pine", which was organized in a collection inserted in cause/effect structure (SI). The other group read the same information, but which was organized in a comparison inserted in cause/effect structure (S2). The post-reading measure consisted of 24 questions that varied according to three criteria. The statistical analysis revealed that the effects of text structure were dependent on the level of prior knowledge and on the type of questions and confirmed that prior knowledge had a determining influence on knowledge acquisition.