Discrimination of reversible mirrored letters (e.g., d and b) poses a challenge when learning to read as it requires overcoming "mirror invariance," an evolutionary-old perceptual tendency of processing mirror images as equivalent. The present study investigated "when," in reading development, mirror-image discrimination…

Few previous studies have directly linked the contribution of phonological awareness (PA) and rapid automatized naming (RAN) to the development of phonological processing and orthographic processing in reading. These studies are predominantly cross-sectional and focus on reading development predictors, with relatively little emphasis on spelling…

Literacy instruction for students with significant intellectual disabilities traditionally emphasizes isolated skills instruction focusing on sight words and basic vocabulary. Recent research suggests these students benefit from high-quality instruction that includes comprehension and storybook reading. This study examined the effect of a…