It had been hypothesized that, in developmental dyslexia (DD), an implicit learning deficit explains children's problems in encoding the phoneme-grapheme correspondences underlying the writing system and thus the development of spelling skills. The present study tested the efficacy of an intervention to facilitate implicit learning of…

Discusses how clinicians and researchers can critically evaluate information from efficacy studies of language intervention programs. It argues for combining both experimental and nonexperimental approaches and suggests that the use of matching in nonrandomized studies allows for comparison of groups of children participating in an intervention…