References
- Annett , M. 1959 . The classification of instances of four common class concepts by children and adults . Brit. J. Educ. Psychol. , 29 : 223 – 233 .
- Bruner , J. S. and Oliver , R. R. 1966 . Studies in Cognitive Growth , New York : Wiley .
- Denney , N. W. and Acito , M. A. 1974 . Classification training in two- and three-year-old children . J. Exper. Child Psychol. , 17 : 37 – 48 .
- Fowler , W. 1962 . Cognitive learning in infancy and early childhood . Psychol. Bull. , 59 : 116 – 152 .
- Furth , H. G. and Milgram , N. A. 1965 . The influence of language on classification: A theoretical model applied to normal, retarded, and deaf children . Genet. Psychol. Monog. , 72 : 317 – 351 .
- Goldman , A. E. and Levine , M. A. 1963 . A developmental study of object sorting . Child Devel. , 34 : 649 – 666 .
- Kofsky , E. A. 1966 . A scalogram study of classificatory development . Child Devel. , 37 : 191 – 204 .
- Kofsky , E. A. and Osler , S. 1967 . Free classification in children . Child Devel. , 38 : 927 – 937 .
- Lovell , K. , Mitchell , B. and Everett , I. R. 1962 . An experimental study of the growth of some logical structures . Brit. J. Educ. Psychol. , 53 : 175 – 188 .
- Piaget , J. and Inhelder , B. 1955 . The Growth of Logical Thinking from Childhood to Adolescence , New York : Basic Books .
- Raven , J. C. 1965 . Mill Hill Vocabulary Scale , London : H. K. Lewis .
- Reichard , S. , Schneider , M. and Rapaport , D. 1944 . The development of concept formation in children . Amer. J. Orthopsychiat. , 14 : 156 – 162 .
- Ricciuti , H. N. 1965 . Object grouping and selective ordering in infants 12 to 24 months old . Merrill-Palmer Quart. , 11 : 129 – 148 .
- Ricciuti , H. N. and Johnson , L. J. 1965 . Developmental changes in categorizing behavior from infancy to the early pre-school years . Paper read at the Society for Research in Child Development . March 1965 , Minneapolis.
- Saarinen , P. 1964 . Developmental results in a block sorting task , Reports of the Psychological Institute, University of Helsinki .
- Sigel , E. 1953 . Developmental trends in the abstraction ability of children . Child Devel. , 24 : 132 – 144 .
- Thompson , J. 1941 . The ability of children of different grade levels to generalize in sorting tests . J. of Psychol. , 11 : 119 – 126 .
- Vygotsky , L. A. 1962 . Thought and Language , Cambridge, Mass. : MIT Press .