Most theories of learning would predict a gradual acquisition and refinement of skills as learning progresses, and while some highlight exponential growth, this fails to explain why natural cognitive development typically progresses in stages. Models that do span multiple developmental stages typically have parameters to "switch" between…

The present study followed a sample of first-grade (N = 316, M[subscript age] = 7.05 at first test) through fourth-grade students to evaluate dynamic developmental relations between vocabulary knowledge and reading comprehension. Using latent change score modeling, competing models were fit to the repeated measurements of vocabulary knowledge and…

The first goal of this study was to examine young children's developing narrative comprehension abilities using theory-based, authentic measures of comprehension processes. The second goal was to examine the relations among young children's comprehension abilities and other early reading skills. Children ages 4 and 6 listened to or watched two…

A study investigated children's understanding (3-, 6-, 9-, and 12-year-olds) of the different levels of meaning of the cognitive verb "know" as defined by the abstractness and conceptual difficulty hierarchy of W. S. Hall, E. K. Scholnick, and A. T. Hughes. Results indicated that cognitive verb knowledge increased with development and…

Addresses two broad issues: the current understanding of spelling development and how this understanding fits within a broader model of literacy development; and the implications of the developmental model for spelling instruction and word study. Suggests that it is essential that instruction balance authentic reading and writing with purposeful…

Evaluates two developmental models incorporating innovations in prosodic theory using the phonological forms of one child's vocabulary documented for the first nine months of language production. Results indicate the relevance of the prosodic hierarchy in the early grammar as well as considerable early knowledge of prosodic structure below the…

Three experiments assessed the contributions of age-of-acquisition (AoA) and frequency to visual word recognition. Three databases were created from electronic journals in chemistry, psychology and geology in order to identify technical words that are extremely frequent in each discipline but acquired late in life. In Experiment 1, psychologists…

Reports that although the traditional domain of developmental lag models has been dyslexia, this type of model is actually more helpful as an aid to understanding the normal achievement variations found among nondyslexic children. (FL)

Evidence from a nine-month longitudinal study of deaf children's early attempts at learning to read provides the construct for an instructional model that stresses that even though the children may have, at the least, a meager expressive sign language vocabulary, they can be lead successfully through the holophrastic or one-word stage of reading…

The Conceptual Learning and Development (CLD) Model specifies four levels of concept attainment (concrete, identity, classificatory, and formal) and three uses of concepts (problem solving, subordinate-supraordinate, and principles). Longitudinal and cross-sectional studies of concept attainment may be conducted. The results of this study of 300…