Abstract
A qualitative study using reading protocols suggests that when readers of informative documents understand conveyed information satisfactorily, they make direct confirmations and positive comprehension evaluations. When readers are uncertain about the accuracy of their understanding, they guess, make assumptions, or render the text's language into their own words. When readers' understanding is impaired, they ask for more clearly established links or relationships in the text, or they pinpoint some ambiguity or lack of resolution. When readers' understanding is unsatisfactory but not impaired, they request additional information. In addition, readers make evaluative suggestions that introduce, focus, emphasize, or reiterate their other comprehension-related responses. The response patterns isolated in this qualitative study indicate the need for specific quantitative research and suggest some directions for developing reader-based heuristics for informative writing.