The child's concept of proportionality: A re-examination

Katherine J. Nelson*, Tamar Zelniker, Wendell E. Jeffrey

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A partial replication and extension of Bruner and Kenney's (1966) study of the concept of proportionality was run with 5- and 7-year-old children. Experimental Ss were given preliminary training to facilitate their understanding of the task and their attention to the relevant cues. Training effectively altered the performance of both the 7- and 5-year-old E groups although only the older group was shown to possess the proportionality concept as measured by the criterion task. The results demonstrated the importance of avoiding verbal ambiguity in the investigation of nonverbal cognitive competence.

Original languageEnglish
Pages (from-to)256-262
Number of pages7
JournalJournal of Experimental Child Psychology
Issue number2
StatePublished - Oct 1969
Externally publishedYes


FundersFunder number
Yale University
U.S. Public Health ServiceMH-6639


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