The purpose of this sequence of a working paper intended for inclusion in a curriculum manual to be published in the future, is to provide the child with concrete experience, opportunities to represent things symbolically, and to learn the nature of symbols and how to read them. Examining objects, acting them out, and experimenting with them, the…

Results indicated that after partialing out CA and MA, number of years in the institution was negatively correlated with success in visually directed object manipulation, social imitation, and purposeful, constructive activities for 103 profoundly retarded residents. (Author/JMB)

Investigates the predictability of cognitive differences at 12 months from infant and maternal behaviors at 4 months. Overall, the results show that some individual differences in cognition may be predictable across the first year of life. (Author/RH)

The study compared the performance of 30 blind Chinese children in Taiwan, 34 blind Indian children, and 40 sighted Chinese children on 8 conservation tasks. Although both groups of blind children performed considerably poorer than sighted children, those blind children with considerable experience handling tangible materials performed better than…

Compared the impact of a small box emitting sounds in response to nearby motion introduced into an infant/toddler and a preschool classroom to illustrate qualitative differences in how children of different ages recognize the same objects as mediating devices for activity. Found that the box became a social object for infants/toddlers and part of…

Discussed are results of studies of the cognitive development of 2- and 3-year-old children which suggest that the mind makes gains in the ability to think as gains in language development are made. "Thinking" in this context refers to the judgments children made as they selected objects and maneuvered them into one arrangement or…

Two experiments used object-manipulation tasks to examine whether one- to two-year-olds form superordinate-like categories by attending to object parts. Findings indicated that 14- and 18-month-olds behaved systematically toward categories with different, but not matching, parts. Without part differences, none formed superordinate categories.…

The purpose of this study was to longitudinally examine the development of symbolic play in 2-year-old Japanese infants. The subjects were four children who were individually tested once a month from the age of 12 to 24 months in laboratory settings. Assessment materials consisted of three sets of miniature toys, a doll and junk objects. Each set…

Examines the issue of object sorting in early infancy. Forty-eight infants at 6, 9, and 12 months were presented with eight sets of small, manipulable objects. At six months, selective manipulation was absent; at nine months, 94 percent of the infants sequentially touched similar objects and at 12 months 100 percent did so. (Author/DB)

Findings indicated that (1) stable preference measures could be obtained, (2) high preference objects resulted in higher motivation to perform and hence higher levels on each scale, (3) performance of this population is not stable, and (4) ordinality was violated in nearly 20 percent of the administrations of the scales. (Author)

Examined infants' ability to retrieve an object from atop a slightly larger object. Found that even 5-month-olds could retrieve objects close in size and fully contiguous with their bases when demands on reaching skill were reduced. Proposed that when they fail this task, it is because they lack the skill to reach the top object without…

THE PURPOSE OF THIS STUDY WAS TO FIND OUT WHETHER SOCIAL CLASS DIFFERENCES IN INTELLECTUAL DEVELOPMENT ARE PRESENT IF (1) CHILDREN FROM SOCIALLY DISORGANIZED SLUM FAMILIES ARE COMPARED WITH CHILDREN FROM STABLE, LOW INCOME AND MIDDLE INCOME FAMILIES, (2) THE PIAGET OBJECT SCALE, A NEW MEASURE OF COGNITIVE DEVELOPMENT BASED ON PIAGET'S SENSORIMOTOR…

Tested infants in their second year with a box task to determine whether they would show a hand preference in solutions involving complete differentiation of roles for the two hands. (HOD)

Compares the manipulative exploration of objects of 30 nine-month-old preterm infants with that of 20 nine-month-old full-term infants. Although no difference between the preterms and the full terms was noted, a high-risk preterm subgroup manipulated objects less. A relationship was found between manipulative exploration at nine months and later…