Sixty children with mean age 5.10 years were studied. Each member of two groups of 20 nonconservers was given a different kind of verbal rule instruction that was focused on the conservation of discontinuous and continuous quantity. (Editor)

In three experiments, performance of children in grades ranging from 1 to 9 was investigated in a repeated trials, free recall experiment. Although performance on the accuracy and clustering measures increased with grade, interactions between grade and other independent variables were generally lacking. (Author/WY)

Meaningfulness values, assessed via the production method, were obtained on 40 trigrams for 120 children, 40 each in second and sixth grade. These norms were subsequently used in a free-recall learning study. (MS)

Examined whether indexes of verbal imprecision could be quantified and used to predict changes in fifth graders' problem-solving performance. Found that four types of verbal imprecision predicted improved performance: false starts and self-repairs, deletions, long pauses, and metacognitive comments. Results suggested that adopting a new approach…

Examined the extent to which maternal linguistic input enabled children to use syntactic bootstrapping. Studied uses of 25 common verbs in speech of 57 mothers to their 1-year olds and 2-year olds. Found that verbs can be used to create informative syntactic frames, syntactic frames can cue appropriate verb class, and multiple syntactic framing…

Used observations and home visits to examine sex differences in language ability of 54 disadvantaged children at risk for poor language outcomes. Found that language difficulties increased over time, boys were at a constant disadvantage to girls in language development, and sex difference in language ability appeared even when families had similar…