The factor structure of some piagetian tasks

The Application of Electronic Computers to Factor Analysis

Henry F. Kaiser · Educational and Psychological Measurement · 1960 · 12.2K citations

Business, Computer Science, Item Response Theory +9

The Child's Conception of Geometry

Jim Richardson, Jean Piaget, Bärbel Inhelder et al. · British Journal of Educational Studies · 1960 · 914 citations

Natural Sciences, Mathematics, Child Development +12

Children's Discovery of the Conservation of Mass, Weight, and Volume: Piaget Replication Study II

David Elkind · The Journal of Genetic Psychology · 1961 · 160 citations

Social Sciences, Genetics, Psychology +6

Relationships of science subject matter and developmental levels of learners

Anton E. Lawson, John W. Renner · Journal of Research in Science Teaching · 1975 · 141 citations

Education, Science Education, Science Curriculum Studies +11

Different Types of Conservation and Nonconservation and Their Relation to Age, Sex, IQ, MA, and Vocabulary

Marcel L. Goldschmid · Child Development · 1967 · 92 citations

Social Sciences, Behavioral Sciences, Psychology +16