Reports on the development of a paper-pencil instrument which consists of five concrete experiences related to environmental concepts. Results indicate an acceptable level of validity. Results also show that the reasoning level of adolescents was well below the theoretical levels predicted for them by theory. (Author/JN)

Raymond B. Cattell's research has produced many conceptual, methodological, measurement, and data analysis tools for identifying and studying interindividual differences and similarities in intraindividual change patterns. Additional Cattell contributions to lifespan developmental research include personality and ability concepts and their…

Several studies of the validity of the intensive time-series design have revealed a post-intervention increase in the level of achievement data (the "momentum effect"). Reports on the development and use of a technique to study the effect as it is observed in several data sets on the learning of plate tectonics. (Author/JN)

Assessed through two studies the organization and basis for preschool children's (n=240) and adults' (n=60) categorization of emotions. In one, children and adults chose facial expressions that exemplify emotion categories such as fear, anger, and happiness. In another they grouped emotions differing in arousal level or pleasure-displeasure…

Argues that learning to spell is a developmental process and reviews research showing that errors made by poor spellers can indicate the point at which that development has broken down. Discusses some of the linguistic strategies students must acquire to become proficient spellers and offers teaching suggestions for helping students develop a…

Developmental changes in specific types of fantasy play and the relation of role taking, egocentrism, and receptive vocabulary were examined in two- to six-year-olds. Both frequency and duration of material and ideational fantasy play increased with age, but play patterns differed. Data suggest developmental progression from object to person…

Three studies explore the development of discrimination and memory for symmetry in preschoolers four to six years of age. Issues addressed include the young child's ability to discriminate and reproduce symmetry, and the effects of pattern orientation and complexity on the young child's symmetry discrimination and reproduction. Results indicate…

Investigates the effects of acoustic similarity on memory span in 112 children four to 10 years of age. Acoustic similarity had progressively more effect on recall with increasing age. Implications for current theories of short-term memory and its development and for the use of acoustic similarity as an indicator of speech coding are discussed.…

Whether "psychometric" and "Piagetian" kinds of intelligence are similar is a question of whether they have similar courses of development with age. When using factor analysis to address this issue, age effects must be eliminated in order to assess relations among measured constructs. Reanalyses of previous results were…

A study of dictionary usage strategies used by 89 college students of Spanish indicated that beginning and intermediate students favored a search strategy based on lexical form, while advanced students used a more successful semantic-based strategy. The data are analyzed against the Vygotskyan theory of human development and self-actualization.…

Presents evidence from the Seattle Longitudinal Study to show that cognitive style and other lifestyle variables in middle life can predict part of the individual differences in ability decline in old age. High performance on fluid abilities and on motor-cognitive flexibility, an engaged lifestyle, and the absence of family dissolution at middle…

The Cognitive Levels Matching (CLM) project uses a constructivist base to teach teachers how to match the cognitive demands of curriculum and cognitive abilities of students. (MD)

Disproves two assumptions about the development of written language by examining the spontaneous writing of a young child. Expounded primarily by James Britton and associates, the assumptions are (1) children's early writing is relatively undifferentiated in function, and (2) the primary starting point for young writers is writing stories. (HTH)

Important reasons exist for differences among the various genres in children's literature, related to the emotional and intellectual development of the reader. The themes presented in good children's fiction are always the same ones, no matter what the age: the need for love, the importance of close attachments, the fear of abandonment and…

Noting that linguistic intelligence is often the primary focus of teaching young children, this paper examines the relationship between children's learning and their social-emotional development. The paper first describes the preschools of Reggio Emilia and the theory of multiple intelligences. The paper then synthesizes research on children's…