Two experiments examined young children's use of behavioral frequency information to make behavioral predictions and global personality attributions. In Experiment 1, participants heard about an actor who behaved positively or negatively toward 1 or several recipients. Generally, children did not differentiate their judgments of the actor on the…

The aims of the present study were to investigate (1) the proportion of adolescents in each of the stages of change, (2) the differences in psychosocial factors and in physical activity between the stages, and (3) the classification accuracy using several reference criteria. A random sample of 38 schools from the Flemish community in Belgium…

The National Child Count of Children and Youth who are Deaf-Blind is the first and longest running registry and knowledge base of children who are deaf-blind in the world. It represents a 25 year collaborative effort between NCDB, its predecessors and each state deaf-blind project throughout the country, as well as those projects funded in the…

Although studies using recall tasks to measure memory typically report age-related declines in performance for older subjects, little is known about how these research results relate to performance in actual situations. A study was undertaken to determine whether years of experience in a domain of knowledge could compensate for age-related…

The present study examines interrelations between young children's conceptions of similarity and difference prior to the operational coordination of these relations. A total of 24 preoperational children, 8 each at 3, 4, and 5 years of age, were tested with a classificatory task. Materials included four different geometrical shapes, with four…

The purposes of this experiment were: (1) to examine the development of categorical representations by comparing the performance of children of various ages to adults, and (2) to compare the internal representations of basic level and superordinate categories. Subjects were 48 children (in second, fourth and sixth grades) and 16 adults. The…

This study examined the ability of preschool children to process and use conceptual category information in a disrcimination learning task. A total of 60 boys and girls between the ages of 2 1/2 and 4 years completed a 3-choice discrimination learning task. On each of 12 trials, a child was presented with three magazine photographs: one of an…

Matrix tasks to assess multiple classifications and multiple seriation skills were administered to 160 children (40 Ss each from preschool, kindergarten, first and second grade levels). Each child received six matrix subtasks (reproduction and transportation of cross classification I, double seriation, and cross classification II) in one of six…

This study investigates the developmental changes that occur in the attending behavior of children engaged in a relatively simple classification task, and attempts to reaffirm the existence of developmental changes in stimulus preferences and in the ability to employ double classification systems. Subjects were 24 preschool and 24 first grade…

Eight children from each of five age groups, 4, 5, 6, 7, and 8 years, were administered matrix tasks involving two nominal dimensions, color and shape. Nine stimulus cells and six attribute cells made up the apparatus. The attribute cells consisted of three colors and three geometric shapes; the stimulus cells made up a matrix consisting of the…

School-aged children and adults performed tasks examining the relation between selective and integrative aspects of visual attention. In a selective attention task, younger children experienced more interference when elements were closely spaced than did other subjects. In an integrative attention task, age differences were most pronounced when…

Examines development of event memory by determining how personally experienced events with two types of structure were reported by kindergartners and adults. Events in making and playing with clay were organized causally and temporally. Results show that adults and children used a goal-based hierarchical structure to remember events, although use…

Describes three experiments that examined how children (4- to 11-year-olds) use their knowledge of the attributes of living things to infer whether particular objects are alive. (HOD)

Explores children's judgments of the relative effectiveness of four memory strategies (looking, naming, rehearsing, and categorizing.) Strategy judgment data were analyzed using Thurstone's Method of Paired Comparisons. (Author/NH)

Second-, fourth-, and sixth-grade children were tested on a multiple-classification task to investigate the relationship between age and observational learning. (Editor)