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…

We modeled word reading growth in typically developing (n = 118) and children with dyslexia (n = 20), Grades 2-5, across multiple exposures to 30 words. We explored the facilitative versus inhibitory effects of exposures to differential mixes of words that support high- versus low-frequency vowel pronunciations. One training corpus contained a…

Teaching children too many words during a lesson reduces retention. The amount of new information a student can successfully rehearse and recall later is called acquisition rate (AR), which has been reliably measured with students in first, third, and fifth grades. The purpose of this study was to examine the reliability of assessing AR for sight…

Over the years, teachers have looked for the best way to teach their students to read. There are those who believe that teaching sight words is the best way to teach while others believe that a foundation in phonics instruction is a must. The purpose of this study is to determine the effect that phonics instruction has on the oral reading fluency…