This study contrasted development of processing speed in 122 children between 7.5 and 11.8 years with learning disabilities and that of 206 nondisabled controls. No differences were found in relation to age in processing speed development in the two groups. Findings suggest that underlying etiologies for the normal developmental change in…

Examined development of displaced reference in four deaf children who used homesign and in 18 hearing children. Found that deaf children referred to the nonpresent less frequently and at later ages than hearing children, both groups followed similar developmental paths. Deaf children evoked the nonpresent by generating novel gestures, modifying…

Extends earlier work with American children to explore British children's application of teleological explanation to artifacts, biological properties, and properties of nonliving natural phenomena, based on the view that because of lower religiosity in Britain, these children might be less inclined than American children to endorse purpose-based…

Examined event-based memory in three groups of children between ages 14 and 25 months. Found that search task success was general in oldest group while performance was similar on a task in which success "may" have been due to recalling an object-removal event and one in which success could "only" have been due to recall of…

Five experiments examined whether young children believe a lie tellers' implausible statement about a misdeed when the statement violates their developing knowledge of the reality- fantasy distinction. Findings suggested that 5- and 6-year-olds tended to report that the individual making the implausible statement actually committed the misdeed; 3-…

Three experiments investigated whether 4-month-olds would attend to and utilize the global configuration ("good form") of a partly occluded, moving object to perceive its unit and coherence behind the occluder. Results indicated that curvature per se provided information in support of completion, in addition to global configuration and…

Argues that there is a social-cognitive and a social-perceptual component to a theory of mind. Presents as evidence three studies comparing children with Williams syndrome to children with Prader-Willi syndrome, and to children with nonspecific mental retardation. The findings suggest that only social-perceptual components of theory of mind, which…

First- and fifth-grade only-children and children with siblings completed 11 cognitive tasks to investigate differences in cognitive abilities that may exist due to the Chinese 1-child family planning program. Superiority of grade one only-children over children with siblings appeared for memory processes, language skills, and mathematics.…

Three experiments examined whether preschoolers viewed outcomes of familiar causes of illness as definite or probabilistic. Findings indicated that children judged that a common cause would affect all group members the same, and believed they could definitely predict illness outcomes in a single case, contrasting with adults' variable and…

Examined the degree of specificity encoded in early lexical representations by presenting 18- to 23-month-olds with object labels either correctly or incorrectly pronounced and analyzing children's eye movement. Found that children recognized the spoken words in both conditions but recognition was poorer when words were mispronounced, with effects…

Examined in 2 studies 2- to 4-year-olds' learning of novel words and novel facts and extension of the words and facts to additional exemplars. Found that children extended the novel word to more category members than they extended the novel fact. By age 2, children observe extendibility of novel count nouns but are uncertain about extendibility of…

Examined third- and seventh-graders' and college students' thinking regarding different types of disagreements. Found that participants' thinking was constrained by the realm and form of the disagreement. At all ages, participants judged some disagreements acceptable and others unacceptable, described disagreements based on different attributes,…

Forty-five children with mathematics learning disabilities, with and without comorbid reading disabilities, were compared to 45 normally achieving peers in tasks assessing basic numerical skills. Children with mathematics disabilities were only impaired when comparing Arabic digits (i.e., symbolic number magnitude) but not when comparing…

Piaget's and Inhelder's Three Mountain Task and Witkin's Children's Embedded Figures Test were given to a group of 80 Nigerian boys aged 7 through 10 years. (GO)

This study examines the learning of a gross motor coincidence timing task by children with learning difficulties, compared with that by children of average intelligence of an equivalent chronological age and mental age. Results are discussed. (Author/MT)