Mildly mentally retarded adolescents (N=14) and mental age-matched nonretarded children participated in three experiments examining language processing efficiency. Results suggested that the retarded and nonretarded differ in the speed with which the semantic-analytic processes are executed but not necessarily the phonological encoding processes…

Predictors of language production skills were evaluated in 48 children and adolescents with Down syndrome and compared to 48 children matched for nonverbal mental age and mother's years of education. Comparison of two models found the model that incorporated comprehension performance (as well group membership, chronological age, cognition,…

This study compared judgments of idiom familiarity and transparency by 50 11-year-old children and 50 16-year-old adolescents. Although the children had less familiarity and greater difficulty comprehending the idioms than did adolescents, their transparency judgments were similar. For both groups the easiest idioms were also judged as the most…

By varying task requirements within a common procedural framework, four experiments established conditions under which children exhibit different understandings of life. Overall, results suggested that even four- and five-year-olds know that people and other animals are alive and that almost all "inanimate objects" are not. (Author/RH)

Finds that, between five and seven years of age, the majority of healthy children in modern urban-industrial societies achieve an understanding of the irreversibility, nonfunctionality, and universality of death. Suggests reasons for ambiguous findings concerning the relationship between the acquisition of the concept of death and developmental…

Comparison of 48 cerebral palsied individuals (aged 10-18), either with impaired speech or normal speech, found speech-impaired subjects were able to discriminate phoneme contrasts adequately in a word judgment task but performed less well on a phoneme discrimination "same-different" task possibly resulting from a weak memory for novel…

This study examined the association of chronological age (CA) with syntax and vocabulary comprehension in 102 children and adolescents with mental retardation. Results indicated that intelligence scores accounted for 55% and 29% of the variability of syntax and vocabulary scores, respectively. Introduction of CA into the regression equation…

Clinical interviews were conducted with 25 seventh- and eighth-grade students to determine: (1) the extent to which they could produce correct graphical representations of familiar situations; (2) to what extent they could infer relationships from graphs; (3) what are the most commonly held graphing misconceptions and how stable they are; and (4)…

This study investigated the perception of emotions and the social skills of 60 eighth-graders, half with and half without learning disabilities (LD). Results indicated that the performance of LD adolescents was significantly poorer than peers in the perception of emotion via either auditory, visual, or combined auditory-visual modes. Although both…

Investigated proportional reasoning of a select group of older, college-bound adolescents on a task set in a geometric/spatial context with a multiple-proportion, multiplicative structure. Sex-related differences and the influence of course experience in mathematics and science were also investigated. (JN)

Compared 12 right-handed adolescent females with a history of idiopathic precocious puberty to 12 closely pair-matched normal controls of similar maturational status to test the association of physical maturation with cognitive abilities and the mediation of this association by hemispheric specialization. (HOD)

Of three methods (free recall, verbally prompted recall, and visually prompted recall) for eliciting understanding of a folk tale by 35 adolescents with intellectual disability, none proved significantly better in eliciting story understanding. All measures correlated with short-term memory, suggesting that subjects' difficulty encoding stories…

Now in a substantially revised and updated second edition, this comprehensive professional resource and text is based on cutting-edge research. In each chapter, leading scholars provide an overview of a particular aspect of comprehension, offer best-practice instructional guidelines and policy recommendations, present key research questions still…

Thirty-two hearing-impaired adolescents were assessed on comprehension of three anaphoric forms within conjoined sentences: repeated noun, personal pronouns, and null form. The null form anaphora in a semantically acceptable environment, in which some hearing-impaired students apply a deviant object-subject deletion rule, was significantly more…

The hearing ability and related cognitive ability of 26 adolescents and young adults with Down's Syndrome (DS) and 26 matched subjects with trainable mental retardation (MR) were compared. Results revealed greater hearing losses in DS than in other MR individuals, especially in the high-frequency range. DS subjects with poorer hearing needed more…