This study sought to assess the ontogenetic course of three classes of size-value phenomena. Size-value phenomena refers to the observation that valued and neutral objects physically equal in size are judged as unequal. Results are discussed in terms of perceptual development. (ST)

Children, aged 5, 8, and 11 years, were tested to assess the conformity of their developing symbolic gestural abilities to imagery processes. Results are discussed in terms of Piaget's conception of stages in imagery development. (ST)

Clarifies the difference between the Piagetian Conservation of Liquid Quantity task and the Conservation of Volume task and provides an alternative test for the presence of formal operational thought. (JR)

The relationship of bilirubin (a red bile pigment that is sometimes found in the urine and occurs in the blood and tissues in jaundice) in infancy to later intellectual development was investigated in 241 infants with moderately elevated and high bilirubin levels. Ss were administered motor, psycholinguistic, and intelligence tests at age 8…

This study formulated a multivariate model of early infant competence from variables representing a transactional perspective of developing competence in early infancy. The measures used in the competence model were: birth weight; habituation index; personality ratings of the infants' social orientation and task orientation; ratings of maternal…

Two studies were conducted to examine relationships between intransitivity, defined by the total circular triad (TCT) score on the Minnesota Importance Questionnaire (MIQ), and vocational needs and abilities. Data were collected on 373 rehabilitation clients for Study 1 and 215 vocational assessment clients for Study 2. In Study 1, TCT scores were…

The use of expository teaching methods in primary grades is examined. (JR)

Discusses the respective roles of rate of learning and level of cognitive development in determining intellectual performance in 156 normal and retarded children matched for mental age. (Author/LLK)

An investigation of the influence of internal and external cues upon the perception of humor in the violation of a logical expectancy (using conservation of weight) in a total of 108 third and fifth graders. (ED)

Presents a study which assessed preschool children's understanding of "front,""back," and "side" through a variety of tasks. A developmental sequence is defined. (ED)

This study investigates the relationship between selected facets of perceptual-cognitive development at the kindergarten level and subsequent reading achievement during first grade. (Author)

Studies the effects of modeling and reversibility cues in teaching 4-year-olds to conserve length. Results are discussed in terms of a social learning viewpoint of cognitive development. (ED)

Children aged 3, 6, 9 and 12 years were asked to name and sort 25 different drinking vessels. Results showed three stages: (1) they ove rextend the term "cup"; (2) they focus only on certain perceptual properties; (3) they show growing awareness of functional properties and hence the vagueness of the boundary. (Author/RM)