A study of eighty Canadian kindergarten children showed that discrimination of similar letters was more difficult than distinctive letter discrimination, irrespective of training format or mode of testing. (MJB)

This paper reports a study carried out with 14 children (ranging in age from 2.8 to 3.5 years) which investigated children's concepts of difference. Pairs of small objects differing on a number of dimensions were presented to the children. As each pair of objects was presented, children were asked to select the object that was…

Six groups of nursery schoolers, kindergarteners, and first graders balanced for sex were trained and tested on a series of discrimination learning and transposition problems. (Author)

Looking times of 36 children were recorded during subject-controlled presentation of slides in order to determine whether the existence of simple categories in 3-year-olds can be inferred from habituation data, and to determine any sex differences in conceptual generalization of habituation. Habituation was demonstrated over repeated presentation…

The relationships among the perception, representation, and construction of series are examined within a model of the acquisition of seriation abilities. The model is then related to two experiments with three-, four- and five-year-olds. The key feature of the model is the delineation of parallels among developmental changes in three arenas:…

The relation between conceptual development and visual exploratory behavior was investigated by engaging eighty-four 3-, 4-, and 8-year-old children in a picture-sorting task to determine whether they would spontaneously and readily discriminate between animate and inanimate objects. (Author/JMB)

This study examined age differences in children's visual fixation and search strategies of two dimensional visual stimuli. The hypotheses tested were: (1) that no age differences exist in general search strategies regardless of stimuli position, (2) that age differences could be expected with respect to the number and duration of visual fixations,…

The aim of this report was to provide teachers of preschool and early elementary school children with a brief summary of current psychological research and theory concerned with the development of cognitive skills in young children. Psychological research often provides a basis for procedures teachers use in the classroom. Each chapter of the…

This is a partial report of a longitudinal investigation designed to assess the psychological effects of an experimentally conducted day care program on children during the first 30 months of life. The experimental subjects were Chinese and Caucasian children from working and middle class families who were cared for at a special group care center…

This volume includes reports of five research projects of the Kansas Center for Research in Early Childhood Education: (1) Individual Differences in Newborn and Young Infants, including research with the Brazelton Neonatal Assessment Scale and laboratory studies of infant discriminative abilities; (2) Development of Social Competence, including…