Conservation of Liquid and Solid Quantity by the Chimpanzee
- 1 December 1978
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 202 (4371), 991-994
- https://doi.org/10.1126/science.202.4371.991
Abstract
Sarah, an adult "language"-trained chimpanzee, made accurate same-different judgments on quantities of liquid and solid matter and conserved both types of quantity despite a transformation in an irrelevant property (shape). Control tests showed that she judged on the basis of inference rather than perceptual evaluation of the quantities. She failed to make accurate same-different judgments on the basis of number, and she was not tested for conservation of this type of quantity.This publication has 8 references indexed in Scilit:
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