Research was undertaken to examine the level of support and general attitudes towards multi-level selective classes for gifted students amongst the staff and parents of an independent (non-government) boys' Preparatory school, located in Adelaide, South Australia. Questionnaires were sent to all parents and staff in the Preparatory school and…

A delayed matching-to-sample task with multiple sample stimuli was used to evaluate stimulus overselectivity in 70 individuals attending residential special-education schools. A Mental Age Equivalent score (MAE) was obtained for each student using the Peabody Picture Vocabulary Test. Twenty-one participants failed to complete matching-to-sample…

It is a matter of debate whether the development of theory of mind (ToM) depends on linguistic development or is, rather, an expression of cognitive development. The study of genetic syndromes, which are characterized by intellectual impairment as well as by different linguistic profiles, may provide useful information with respect to this issue.…

Characterizing early communicative development in children with Autism Spectrum Disorders (ASD) is valuable for understanding profiles of ability in this population. The current investigation was modeled on Charman, Drew, Baird & Baird (2003b). Analyses explored parent report of early vocabulary, non-verbal communication, functional object use and…

Twenty mildly mentally retarded students were matched with two groups of normal students, one of the same chronological age (CA) and one of the same mental age (MA), to examine the influence of age indices and metamemory on memory behavior in terms of recall accuracy and recall time. This was achieved using a metamemory instrument which was…

In an investigation of social inference (the ability to decode and comprehend cues), prompt questions of decreasing cognitive complexity were employed to train 60 mildly mentally retarded adolescents to logically interpret pictorial stimuli. Cartoon line drawings were used illustrating social situations representing a variety of family and peer…

The construct and predictive validity of adaptive behavior was investigated using a multitrait multimethod analysis with 66 mentally retarded institutionalized persons. Adaptive behavior had high convergent validity and low discriminant validity and predicted MA program placement better than did MA, suggesting that adaptive behavior scores could…

Background Individuals with intellectual disability (ID) are more vulnerable to abuse compared to individuals without disabilities yet have limited access to the legal system. This study examined perceived credibility of youth with mild intellectual disability (MID) who provide courtroom testimony. Method Participants, 187 undergraduates, were…

Williams (WS) and Down syndromes (DS) are two genetic disorders that involve intellectual disability (ID) and have been extensively studied over the past decades because of the unique linguistic profiles they exhibit. Recent investigations seek to explore the fractionation of linguistic components within the cognitive system using genetically…

Compared to mental and chronological age-matched groups of normal children, six autistic children (1) did not maximize reinforcement; (2) sampled less, and less efficiently; and (3) were much less responsive to extinction. Autistic sampling behavior was redirected by stimulus change. Results are viewed as perhaps causally related to many…

Results demonstrated that when compared with normally developing children of the same mental age, the Down's syndrome Ss (6 to 12 years old) evidenced a more homogeneous pattern of syntactic usage and tended to acquire only low-level syntactic structures, as identified by the Developmental Sentence Scoring procedure. (Author)

Responds to "Birth Order and Intelligence: Further Tests of the Confluence Model" by Robert D. Retherford and William H. Sewell. Reviews their arguments and suggests that their analyses of the Wisconsin Longitudinal Study data support rather than contradict the model. (CJS)

Compared mastery motivation on 2 tasks for 1- and 2-year-old children--25 with motor impairment, 25 with developmental delays, and 25 with typical development, but all matched for mental age. Found that the groups did not differ on any measure of mastery motivation. (MDM)

Compares gifted preschool boys and girls with both a CA (Chronological Age)-matched group and an MA (Mental Age)-matched group on their performance on a spatial projective task, a cognitive perspective-taking task, and an affective perspective-taking task. The data seem to support the hypothesis that psychometric brightness implies cognitive…

Background: Disordered expressive prosody is a widely reported characteristic of individuals with autism. Despite this, it has received little attention in the literature and the few studies that have addressed it have not described its relationship to other aspects of communication. Aims: To determine the nature and relationship of expressive and…