Spelling errors are typically thought of as an "effect" of a word's weak orthographic representation in an individual mind. What if existence of spelling errors is a partial "cause" of effortful orthographic learning and word recognition? We selected words that had homophonic substandard spelling variants of varying frequency…

The results of the Programme for the International Assessment of Adult Competencies (PIAAC) survey paint a troubling portrait of the literacy skills of adults in the United States. The survey included a direct assessment of skills and was conducted in 23 countries with nationally representative samples of adults ages 16 through 65. Assessed were…

Three experiments examined the role of phonology in the activation of word meanings in Grade 5 students. In Experiment 1, homophone and spelling control errors were embedded in a story context and participants performed a proofreading task as they read for meaning. For both good and poor readers, more homophone errors went undetected than spelling…

The fan effect (the difficulty in retrieving any one fact after learning many about a concept) occurs only when the facts with repeated concepts are stored as independent episodes. It tells us nothing about the code formed by a pattern of interconnected concepts. (Author/CP)