Premium
Intelligence and inspection time in normal and mentally retarded subjects
Author(s) -
Hulme Charles,
Turnbull Jennifer
Publication year - 1983
Publication title -
british journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.536
H-Index - 92
eISSN - 2044-8295
pISSN - 0007-1269
DOI - 10.1111/j.2044-8295.1983.tb01868.x
Subject(s) - psychology , mentally retarded , mental deficiency , developmental psychology , audiology , psychiatry , medicine
The present experiments explore the generality of some recent findings relating IQ to a measure known as Inspection Time (IT) ‐ the exposure duration necessary to judge which of two briefly presented straight lines is the longer. In the first study IT and verbal and performance IQ scores were obtained from a large group of normal six‐ and seven‐year‐old children. In contrast to some previous suggestions verbal IQ and full‐scale IQ did not correlate significantly with IT, and performance IQ showed only a weak correlation with IT ( r = −0.29). In the second experiment IT was found to correlate much more highly with performance IQ in a sample of mentally retarded subjects ( r = −0.71). Some possible implications of these results for theories of intelligence and of mental retardation are discussed.