The aim of the present study was to examine the kinds of developmental profiles of arithmetic fluency skills that can be identified across Grades 1-9 (ages 7-16) in a large Finnish sample (n = 2,518). The study also examined whether membership in the developmental profiles could be predicted using a comprehensive set of kindergarten-age factors,…

Purpose: Reading fluency establishes the basis for the strong literacy skills needed for academic success. We aim to trace how reading fluency develops from childhood to adulthood and identify factors that influence this development. Method: In this study, 200 families were followed. All participating children (N = 200, 47% female) were ethnic…

At the end of first grade, TM did not know the alphabet and could read no words. He could not tap syllables in words, had difficulty producing rhyming words and retrieving the phonological representations of words, and he could not discriminate many phoneme contrasts. He learned letter-sound correspondences first for single-consonant onsets and…