BRAIN AND LANGUAGE 37, 90-121 (1989) Can Dyslexia Be Treated? Treatment-Specific and Generalized Treatment Effects in Dyslexic Children’s Response to Remediation MAUREEN W. LOVETT The Hospital for Sick Children and The University of Toronto MARILYN J. RANSBY The Hospital for Sick Children and The Board of Education for the City of Toronto NOREEN HARDWICK The Board of Education for the City of Toronto MARIE S. JOHNS The Hospital for Sick Children and The Board of Education for the City of Toronto AND SALLY A. DONALDSON The Hospital for Sick Children A total of 178 reading disabled children were randomly assigned to one of three treatment conditions providing training in word recognition and decoding This research was initiated while the first author held a Centennial Fellowship from the Medical Research Council of Canada and completed during tenure of a Research Schol- arship from the Ontario Mental Health Foundation. The research program was supported by operating grants from the Medical Research Council and from the Ontario Mental Health Foundation. The authors gratefully acknowledge the generous contributions of Terry Smialy, Judy Millington, and Maureen McParland in assisting with all phases of data collection, and of Patricia Warren, Kathleen Farrell, Janice Carere, Rebecca Netley, and Elizabeth Wall in assisting with data coding and transcription. Special thanks are due Terry Smialy, Janet Olds, and Theo Megalokonomos for their statistical and computer skills, and Dr. Michael Murray for his statistical consultation. The special contribution of Nancy Benson in adapting the Johnson-Neyman technique for multiple group comparisons and for SPSS-X use is particularly appreciated. The contributions and expertise of Lauchlan McInroy and Anne Walkinshaw who joined the second, third. and fourth authors in im- 0093-934X/89 $3.00 Copyright 0 1989 by Academic Press, Inc. All rights of reproduction in any form reserved. 90