Exemplary Middle Grades Research: Evidence-Based Studies Linking Theory to Practice features research published throughout 2009 in MGRJ that has been identified by our review board as the most useful in terms of assisting educators with making practical applications from evidence-based studies to classroom and school settings. The editorial team is pleased to present these studies under one cover, trusting each will contribute to the existing body of knowledge on middle grades education in ways that will enable readers to develop theories more fully and apply findings and implications to a variety of settings. Studies are presented in chronological order as they appeared in each of the four issues published during the fourth volume year (2009). Our first three issues 4(1), 4(2), and 4(3) were special themes wherein guest editors provided the oversight for selection and substantive editorial revisions. Any guest editors' introductory comments regarding previously published manuscripts appear in italics, followed by the editor-in-chief 's comments.