Early in the development of learning disability programs, the terms reading disability and dyslexia were widely used to describe the problem of a child who had extreme difficulty in learning to decode printed words (Jastak and Jastak, 1965), despite conventional educational opportunity (Money, 1962) and apparent capacity to learn (Bateman, 1964). Reading disability was further distinguished from simple reading difficulty by its severity and its duration, with resultant need for highly specialized treat ment over a long period of time (Rabinovitch, 1962).
Morsink, C. (1977). Skill-Referenced Instruction for Disabled Readers: Guidelines and Cautions. Reading Horizons, 17 (2). Retrieved from https://scholarworks.wmich.edu/reading_horizons/vol17/iss2/9