We examined the instability of reading errors, that is whether a child reads the same word sometimes correctly and sometimes incorrectly, as a function of the complexity of context-sensitive spelling rules (vowel degemination and consonant gemination). Dutch bisyllabic words were read twice by typical readers in Grades 2 and 3, and reading-level…

This article describes an empirical investigation of the extent to which incorrect arithmetic algorithms persist over time. Results with 30 fourth-year and third-year English students over up to 3 months shed light on "bugs," or students' learning of incorrect concepts, and indicate that they are not very stable in children of this age.…

Using R. S. Siegler's retrieval-required task, 19 male and 22 female third graders were examined before they had been introduced to multiplication in school. Examination of error patterns suggests that the basic assumptions of the distribution-of-associations model need to be tested directly and that the retrieval-required task confounds retrieved…