Dealing With Uncertainty: Readers' Memory for and Use of Conflicting Information From Science Texts as Function of Presentation Format and Source Expertise

Past research has shown that readers often fail to notice conflicts in text. In our present study we investigated whether accessing information from multiple documents instead of a single document might alleviate this problem by motivating readers to integrate information. We further tested whether this effect would be moderated by source expertise. One hundred undergraduates read the same medical information purportedly written by either medical experts or laypeople, which was presented as one document or spread across four documents. Results revealed partial support for our hypotheses. Readers of multiple documents exhibited superior memory for conflicts and provided a more balanced description of conflicting information in essays they wrote. Variation of author expertise moderated the effect of presentation format in the essay task but not on the memory test. The results extend previous research by showing that multiple documents reading also stimulates the integration of conflicting information.