The orthographic choice (OC) task--requiring individuals to choose the correct spelling between a word and a pseudohomophone foil (e.g., "goat" vs. "gote")--has been used as an outcome measure of orthographic learning and as a predictor of individual differences in word reading development. Some consider the OC task a measure…

Modern behavior-genetic studies of twins in the United States, Australia, Scandinavia, and the United Kingdom show that genes account for most of the variance in children's reading ability by the end of the 1st year of formal reading instruction. Strong genetic influence continues across the grades, though the relevant genes vary for reading words…

Identical and fraternal twins (N = 540, age 8 to 18 years) were tested on three different measures of writing (Woodcock-Johnson III Tests of Achievement--Writing Samples and Writing Fluency; Handwriting Copy from the Group Diagnostic Reading and Aptitude Achievement Tests), three different language skills (phonological awareness, rapid naming, and…

The genetic factor structure of a range of learning measures was explored in twin children, recruited in preschool and followed to Grade 2 ("N"?=?2,084). Measures of orthographic learning and word reading were included in the analyses to determine how these patterned with the learning processes. An exploratory factor analysis of the…

Individual differences in word recognition, spelling, and reading comprehension for 324 children at a mean age of 16 were predicted from their reading-related skills (phoneme awareness, phonological decoding, rapid naming, and IQ) at a mean age of 10 years, after controlling the predictors for the autoregressive effects of the correlated reading…

Investigates whether two different versions of the serial rapid automatized naming (RAN) task, using similar alphanumeric stimuli, would differentially predict performance on word level reading skills. Indicates that the RAN-Alternative measure explained significantly more unique variance in word recognition and orthographic-processing skills than…

Grade 1 literacy skills of twin children in Australia (New South Wales) and the United States (Colorado) were explored in a genetically sensitive design (N = 319 pairs). Analyses indicated strong genetic influence on word and nonword identification, reading comprehension, and spelling. Rapid naming showed more modest, though reliable, genetic…

Elementary students (n=105) with problems in word recognition were given computer-assisted instruction involving either only reading words in context, or reading words in context and completing exercises involving individual words (to increase their phonological awareness). The latter group showed significant gains on tests of phoneme awareness…

Presents an overview and evaluation of a computer program directed toward the remediation of children's deficits in word recognition and phonological decoding. Finds that students improved their word recognition skills and phonological decoding of nonwords. Notes that the most severely disabled readers showed the largest gains. Discusses…

Reports results from one- and two-year follow-up tests for children with reading problems who had previously received 25 hours of training in one of two computer-based remediation programs. Finds children initially trained in phonological skills made greater gains in phonological awareness, phonological decoding, and untimed word recognition at…

Explored genetic and environmental etiologies of individual differences in printed word recognition and related skills in identical and fraternal twin 8- to 18-year-olds. Found evidence for moderate genetic influences common between IQ, phoneme awareness, and word-reading skills and for stronger IQ-independent genetic influences that were common…