Piaget's conservation paradigm was used to assess five- to seven-year-old children's understanding of the permanence of various kinship roles. Children's conservation was studied by applying certain transformations on single- and multiple-kinship role combinations. Kinship conservation developed gradually in this age range. Females' performance…

A paper-and-pencil test consisting of a series of 24 sketches was administered to assess the performance of hearing impaired students aged 9-12 on a Piagetian horizontality task. This age range among hearing students is the developmental period during which comprehension of the principle of horizontality should begin to emerge, indicating ability…

Tests the distinction between inferring new categories on the basis of property information (predicted to be difficult) and inferring new properties on the basis of category information (predicted to be easier) among 57 preschool children. (HOD)

The general aim of education is seen as creating possibilities for gaining experiences and acquiring knowledge, hence development of cognition. The knowledge ideal in education is understood within the frames of the historically produced scientific ideal, which also indicates the road by which knowledge may be obtained. This historical production…

This paper presents a challenge to a widely cited report by Elkind which states that a large proportion of college students, particularly females, are unable to conserve volume. (BD)

Because of the general recognition of the importance of mathematics ability, and the close relationship between mathematics ability and spatial ability, eight studies were undertaken to discover and describe aspects of spatial competence in children. The range of abilities tapped stretched from very early precursor skills with Euclidean space to…

Learning of the concept of horizontality by fourth graders was investigated. Comparisons by age and sex were made. (BB)

Reflective and impulsive children were instructed to hasten or delay their responses on a test of hypothesis-seeking and constraint seeking conceptual strategies. Latency of response data on pretesting, training, and immediate posttests showed that the attempts to hasten or delay responses were successful in changing response latencies. (ST)

Attempts to determine the age at which the concept of middleness," or intermediately positioned object, emerges and is functional. (MB)

Examined 6-, 9-, and 14-year-olds' imagination of the unknown within a storytelling context. Performed phenomenological analysis of the two youngest groups' drawings and the oldest group's story on the "heffalump" theme. Derived eight categories providing an image-analysis of the concept of the "unknown" structured as "something-otherwise," that…

This study examined how well adults can make inferences about children's cognitive abilities. Subjects (n=60) were four groups of adults: female parents, female nonparents, male parents, and male nonparents. They were shown the typical method of administering 13 Piagetian tasks, ranging from object permanence to the formal-operational pendulum…

The influence of the ability to conserve length in the development of a size concept was investigated in males and females aged 4 years through 9 years. (GO)

There is a need to conduct more Piagetian research in the West Indies in order to develop a basis for a culturally appropriate curriculum. This article analyzes the performance of students in Trinidad and Tobago on Piagetian tasks. The majority of these children did not conform to Piaget's classification of stages. (VM)

In a schematic concept formation task, second and fifth graders were required to sort 60 computer-generated, 8-sided polygons into two classes. The results indicated that age differences in schematic concept formation are due more to the efficiency of information use than to differences in strategy or the selection of information to be used. (ST)