Thirty-two preschool children were administered the Cognitive Levels Test (CLT) to evaluate its temporal stability and concurrent validity. Results indicated good temporal stability for the CLT-Cognitive Index and high correlations between the CLT-Cognitive Index and the Stanford-Binet: Fourth Edition. (Author/JDD)

This article describes conceptual and statistical issues in three approaches to the measurement of change in early intervention programs: change scores, indexes of change, and residual change scores. Advantages and limitations of each approach are reviewed. Problems with the reliability of change scores are highlighted. Criteria for selecting…

The "2011 State Preschool Yearbook" is the newest edition of our annual report profiling state-funded prekindergarten programs in the United States. This latest "Yearbook" presents data on state-funded prekindergarten during the 2010-2011 school year as well as documenting a decade of progress since the first…

This directory describes 151 research projects funded by the Division of Innovation and Development of the Office of Special Education Programs (OSEP), U.S. Department of the Education. Projects are listed alphabetically by principal investigator. Listed for each project are the project title, principal investigator, address, telephone number,…

Two studies were conducted to determine whether preschool children automatically use spatial context to aid recall of objects or whether the ability to use spatial context as a retrieval aid is a deliberate mnemonic strategy that develops later. In the first experiment, a total of 32 children (16 aged 3 and 16 aged 4) participated in a memory task…

An investigation was made of the extent to which mental operations involved in quantitative conservation and pretense play affect the development of gender constancy. The research design included three phases: a pretest establishing subjects' levels of conservation and gender understanding, a training phase, and conservation and gender constancy…

Recent work suggests that the apparent shift from thematic to taxonomic concept organization reflects changes in children's preference for these forms of organization, rather than their capacity. A study was made to assess toddlers' knowledge of the different possible relations for the same concept and to extend the triad method to children under…

Four- and 5-year-olds' understanding of basic turtle graphics commands was examined before and after a hands-on, interactive problem-solving experience. Children (n=32) saw display screen events consisting of an initial turtle state, a command transformation, and the resulting turtle state. They were asked to give the command executed in each…

Based on data collected from official statistics and analyzed with structural equation models, this study indicated that preschool education produced a lasting effect on success in elementary school. In addition, evaluation using routinely collected data in replicable structural models is seen as a valuable strategy for education system control…

Responses of day care and home care children to an adult dropping items, banging her knee, giving the children opportunity to leave the larger of two prizes for a peer, and asking for donation to sick children were compared. Prosocial reasoning in these 47- to 75-month-old children was assessed via their responses to stories in which help was…

Nine studies reporting child change data for nonhandicapped children participating in integrated preschool settings were analyzed in terms of methodology and specific classroom practices. The studies suffered from methodological weaknesses common to many early intervention efficacy studies. Documentation of child progress is only one measure of…

The ability of 40 children four and five years of age to discriminate reflections and rotations of visual stimuli was examined in a kinetic imagery task. Results revealed that prediction accuracy was associated with the existence of orientation markers on the stimuli, as well as age, sex, type of discrimination, and several interactions among the…

Examines children's memory for preschool routines as a function of current grade level and successive modifications in the school-day script. First, children in preschool through third grade were tested, then children in kindergarten through third grade. Results showed a process of generalization for preschool scripts over time. (Author/BB)

Investigates processes that might influence the degree of association between preschoolers' sex-role stereotyped toy choices and their choice of same-sex versus opposite-sex playmates. A total of 51 children in preschool classes for four-year-olds were observed during free play over nine weeks. (Author/RH)

Directives, social conversation, on-task play, and positive, negative, nonsense, and task-related verbalizations of preschool-aged and school-aged peer dyads were observed in a laboratory playroom in the presence or absence of observers. Results revealed that the frequency of all of the behaviors sampled, except positive verbalizations, decreased…