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OPERATIONAL CONSERVATION OF ILLUSION‐DISTORTED LENGTH
Author(s) -
MURRAY FRANK B.
Publication year - 1968
Publication title -
british journal of educational psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.557
H-Index - 95
eISSN - 2044-8279
pISSN - 0007-0998
DOI - 10.1111/j.2044-8279.1968.tb02004.x
Subject(s) - illusion , psychology , task (project management) , humanities , cognitive psychology , art , engineering , systems engineering
S ummary . Two sticks of equal length were made to look unequal by the Muller‐Lyer illusion. A child conserved length if he saw the illusion and despite it, maintained that the lengths of the sticks were the same. Subjects were directed to use one of the sticks that looked unequal in the Muller‐Lyer illusion and then if they wanted to, the other stick, to fish a coin from a cage. A child failed to conserve the length of the sticks if he refused or used the second stick and said he did because it was longer or shorter than the first stick. A significant number of children (p<.001) who conserved length on the first task did not conserve it on the second.