Patricia F. VadasyPatricia F. Vadasy, PhD, is Senior Researcher at the Oregon Research Institute in Seattle, Washington. Her background is in early reading acquisition and instruction, instructional design, and intervention research. Dr. Vadasy oversees a research team engaged in research on effective school-based literacy interventions for at-risk and struggling students. She has published findings on her grant-funded intervention research widely in peer-reviewed journals. She is the lead author (with Rollanda E. O’Connor) of the Sound Partners code-oriented supplemental tutoring program and coauthor (with Rollanda E. O’Connor) of the Ladders to Literacy preschool and kindergarten programs.