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Twenty years a growing: gains in the intelligence test scores of Irish children over two decades
Author(s)
Date Issued
2001
Date Available
2015-03-24T12:45:17Z
Abstract
Using data from Gill and Byrt's 1972 standardization of the Ravens Standard Progressive Matrices (RSPM) on a national sample of Irish primary school children, O'Connor & Ruddle's 1987 survey of a large sample of school children in Clare and Jeffer's and Fitzgerald's 1989 survey of 9-12 year olds in a Dublin suburb, we found that over the period from 1972-1989 the mean gain in IQ points on the RSPM was approximately 9 IQ points. This gain of about 0.6 standard deviations in IQ points has occurred in both a rural and an urban area. The 9 IQ point gain over about 16 years is comparable to the 18 IQ point gain that has been observed on culture reduced tests over the 30 year period between 1950-1980 in 14 of the world's advanced economies.
Type of Material
Book Chapter
Publisher
Edwin Mellen Press
Language
English
Status of Item
Peer reviewed
Part of
Carr, A. (eds.). Clinical Psychology in Ireland, Volume 3: Empirical Studies of Problems and Treatment Processes in Children and Adolescents
ISBN
9780773473416
This item is made available under a Creative Commons License
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