The 1981 and 1984 studies of revision, developed by the Wisconsin Pupil Assessment Program, are described in this document, which examines how well students are able to revise their own papers. Contents include an explanation of how the 1981 and 1984 evaluation criteria were created; an overview of the results of the 1984 revision study for grades 5, 8, and 11; a summary of significant findings regarding the kinds, extent, and quality of revisions made; a discussion of the relationship between student responses to the questionnaire and the revision study; observations and teaching suggestions; and a summary of writing curricular and instructional recommendations. The observations and teaching suggestions section summarizes the observations about the revisions and combines them with teaching suggestions in the following categories: prewriting, surface features, information, combining and rewording, beginnings and endings, reorganizing, the total extent of revision, and the overall quality of revision. Appendix A provides a model for workshop design, while Appendix B shows the Wisconsin Revision Study Design. In Appendix C the revision study data are organized according to the categories of revisions already mentioned. It contains the kinds, extent, and quality of revisions compared with test scores; the kinds, extent, and quality of revisions made by males and females; and questionnaire responses compared with revision study results. (EL)