“…Gillingham & Stillman, 1956) and their combination (Hulme & Bradley, 1984; Lundberg, Frost, & Peterson, 1988) for specifying the appropriate foci of training were available earlier. At the outset, computer-based speech feedback received relatively wide popularity among researchers (Spaai, Reitsma, & Ellerman, 1991; Leong, 1992; Olofsson, 1992; Olson & Wise, 1992; van Daal & Reitsma, 1993; Elbro, Rasmussen, & Spelling, 1996). Other kinds of training techniques, such as multi-sensory treatments (e.g.…”