Response to Intervention and LD 1 Running head: RESPONSE TO INTERVENTION AND LEARNING DISABILITIES Response to Intervention in the Identification of Learning Disabilities: Empirical Support and Future Challenges Frank M. Gresham University of California-Riverside Amanda VanDerHeyden University of California-Santa Barbara Joseph C. Witt Louisiana State University All correspondence should be directed to Frank M. Gresham, Graduate School of Education, University of California-Riverside Riverside, CA 92521 frank.gresham@ucr.edu REVISED: January, 2005