Studying development processes, as they unfold over time, involves collecting repeated measures from individuals and modeling the changes over time. One methodological challenge in this type of longitudinal data is separating retest effects, due to the repeated assessments, from developmental processes such as maturation or age. In this article,…

Guided by evolutionary-developmental models, this study tested the hypothesis that children's exposure to parental relationship instability, defined by initiation and dissolution of caregiver intimate relationships, has both costs in cognitive impairments and benefits in enhanced learning skills. Participants included 243 mothers and their…

Contemporary children are growing up in a post-typographic era, where mobile electronic devices and digital texts are increasingly present. For parents and educators, shifts into new digital practices and new text forms can create a sense of uncertainty. In response to parent and teacher interest, popular media have frequently focused on topics…

This article reports on the study of differential change trajectories for early childhood approaches to learning. A large sample (N = 2,152) of Head Start children was followed through prekindergarten, kindergarten, and first grade. Classroom learning behaviors were assessed by teachers through the Preschool Learning Behaviors Scale twice in Head…

The relation of social and linguistic input measures to early vocabulary development was examined in 30 low-income African American mother-infant pairs. Observations were conducted when the child was 0 years, 1 month (0;1), 0;4, 0;8, 1;0, 1;6, and 2;0. Maternal input was coded for word types and tokens, contingent responsiveness, and…

This volume brings together leading authorities from multiple disciplines to examine the relationship between brain development and behavior in typically developing children. Presented are innovative cross-sectional and longitudinal studies that shed light on brain-behavior connections in infancy and toddlerhood through adolescence. Chapters…

The longitudinal study investigated the language acquisition strategies employed over one and one-half years by an eight-year-old autistic child learning sign language. There were specific deviations in language development noted, in spite of providing the child with appropriate sign language training. (Author)

Spontaneous speech samples of 15 children were analyzed for appropriate and inappropriate use and nonuse of the past tense verbal inflection. It was found that: (1) two types of overgeneralization errors have acquisitional relevance; and (2) partial regularity blocks overgeneralization errors. Two hypotheses were not supported. (CHK)

This longitudinal study of children's drawings is designed to indicate important aspects of the socialization process through analysis of changes in children's drawings. The Draw-A-Classroom (DAC) Test was administered to 100 students between 1961 and 1966. Data was available from a total of eight test administrations, given in the period between…

Examines the case of two five-year-old twin boys with delayed language development, yet judged to be articulate and successful students in kindergarten. Suggests that the delay appeared because most of their interaction had been with each other. However, through their family they became acquainted with the discourse activities that are valued at…

TWO STUDIES DEAL WITH THE THOUGHT PROCESSES CHILDREN DISPLAY WHEN FACED WITH PROBLEMS INVOLVING THE CONCEPTS OF QUANTITY AND NUMBER. INVOLVING CHILDREN IN KINDERGARTEN, FIRST GRADE AND SECOND GRADE, THE STUDIES USE PIAGET'S THEORIES IN BOTH A CROSS-SECTIONAL AND A LONGITUDINAL APPROACH TO STUDY CHILDREN'S THINKING IN AN EDUCATIONAL SETTING. TO…

This document is the fourth volume in a 5-part series that reports the results of a project undertaken to critically review and analyze major longitudinal studies of child and student development. These studies were conducted to discover the variables, techniques, methodologies, and problems pertinent to evaluation studies of the effects of…

This group of eight bulletins provides abstracts on research relating to children reported to the Clearinghouse for Research in Child Life from July 1962 to August 1968. Abstracts are organized by topic area: (1) "Long Term Research"; (2) "Growth and Development," including general, physical, perceptual, cognitive, motor,…