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…

Assessing a student's acquisition rates (ARs) is a reliable way to determine how many new words should be taught in one lesson without reducing retention. Exceeding a student's AR can result in frustration and problem behaviors. The purpose of this study was to examine the effect of AR on the off-task behavior of kindergarten students while…