Studies are needed to better understand the broad autism phenotype in young siblings of children with autism. Cognitive, adaptive, social, imitation, play, and language abilities were examined in 42 non-autistic siblings and 20 toddlers with no family history of autism, ages 18-27 months. Siblings, as a group, were below average in expressive…

Cognitive and language skills of 39 siblings of children with autism (SIBS-A) and 39 siblings of typically developing children (SIBS-TD) at ages 4, 14, 24, 36, and 54 months were compared. Twelve of the 39 SIBS-A revealed a delay in cognition and/or language (including one child diagnosed with autism) compared to only two SIBS-TD. Developmental…

This report aims to characterize, in greater detail, the delicate psychological processes children go through when facing two languages and two cultures. In doing so, it is suggested that bilingualism can play an important role in cognitive and linguistic growth. Data used in this study is taken from a larger study involving 30 Italian bilingual…

The incidence and nature of depressed and nondepressed mothers' unpremeditated "teaching" behaviors was investigated during 8-minute periods of videotaped interactions between each mother and her toddler and a suitcase full of toys. Diagnosed mothers had experienced depressive episodes during their child's lifetime. Nondepressed mothers…

This paper discusses a model of information storage and retrieval, the k-d tree (Bentley, 1975), a binary, hierarchical tree with multiple associate terms, which has been explored in computer research, and it is suggested that this model could be useful for describing human cognition. Included are two models of human long-term memory--networks and…

RESEARCH OBJECTIVES WERE (A) TO DEVELOP A BATTERY OF INSIGHT-PROBLEMS FOR USE IN PROBLEM-SOLVING RESEARCH, (B) TO REPLICATE A TRAINING EXPERIMENT IN ORDER TO DETERMINE WHAT A SUBJECT MIGHT HAVE LEARNED IN A SPECIFIC SITUATION WHICH COULD INFLUENCE NONSPECIFIC SITUATIONS, AND (C) TO ATTEMPT TO TEACH SUBJECTS STRATEGY WHICH WILL ALLOW THEM TO…

THREE PSYCHOLOGICAL DISCIPLINES OFFER APPROACHES TO AN UNDERSTANDING OF INTELLIGENCE. AN ATTEMPT IS MADE TO UNCOVER THE COMMON FEATURES OF THE PSYCHOMETRIC SCHOOL, LEARNING, AND MENTAL DEVELOPMENT APPROACHES. A STRUCTURAL CONCEPT IS SELECTED FROM EACH PSYCHOLOGICAL DISCIPLINE FOR COMPARATIVE ANALYSIS--THE CONCEPT OF FACTOR FROM THE PSYCHOMETRIC…

Two Biological Sciences Curriculum Study (BSCS) approaches to teaching high school biology were employed to study the relative effects which different curriculum approaches might have on certain intellectual aptitudes of students. Subjects included 144 students enrolled in the BSCS Yellow Version and 143 students enrolled in BSCS Blue Version.…

This paper argues in favor of using interactional strategies in the study of formal operations reasoning. Interactional designs allow a convergent approach to specifying processes underlying the interaction of variables. In contrast, current methodologies contain two inherent disadvantages: they have limited utility in specifying the processes…

Developmental selective learning processes of elementary school age children were investigated using two types of incidental learning methodologies. The purposes of this study were to: (1) compare the effects of the two types of incidental learning paradigms, and (2) determine the influence of different kinds of stimulus relationships on…

This report presents results from an experimental comparison of four kinds of Head Start programs (Montessori, Traditional, Bereiter-Engelmann, and Darcee) and a 3-year follow-up through second grade. The four programs are described, and the immediate and stable effects of each program on children's cognitive, motivational and perceptual…

Reports a study involving 35 learning-disabled boys attending full-time remedial schools and 35 matched normal achievers to investigate whether learning-disabled children differ from normal achievers in terms of logical thought and whether they exhibit decalages in their acquisition of Piagetian concepts. (BD/BR)

Literature suggests that females have lower initial expectancies for success than males. The antecedents of this difference are considered: (a) by examining when expectancy differences develop, and, (b) by examining cognitive factors which may underlie these differential expectancies. (Author/AM)

This study compared scores of 131 deaf and 131 hearing adolescents on the Torrance Tests of Creative Thinking. (SB)

On tasks involving assessement of the heights of colored sticks, kindergarten, third-grade, and adult subjects were successful on inferences involving only equalities or only inequalities across various conditions and procedures. A dramatic developmental increase in performance was found on inferences based on the combination of equality and…