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A Cross-Cultural Study of Collectivism: A Comparison of American, Estonian, and Russian Students
In: The Journal of social psychology, Volume 139, Issue 2, p. 133-142
ISSN: 1940-1183
On the relationship between personality and totalitarian regimes: A critique of Western stereotypes
In: Journal of Baltic studies: JBS, Volume 27, Issue 4, p. 331-340
ISSN: 1751-7877
THE GROWTH OF IQ AMONG ESTONIAN SCHOOLCHILDREN FROM AGES 7 TO 19
In: Journal of biosocial science: JBS, Volume 36, Issue 6, p. 735-740
ISSN: 1469-7599
The Standard Progressive Matrices test was standardized in Estonia on a representative sample of 4874 schoolchildren aged from 7 to 19 years. When the IQ of Estonian children was expressed in relation to British and Icelandic norms, both demonstrated a similar sigmoid relationship. The youngest Estonian group scored higher than the British and Icelandic norms: after first grade, the score fell below 100 and remained lower until age 12, and after that age it increased above the mean level of these two comparison countries. The difference between the junior school children and the secondary school children may be due to schooling, sampling error or different trajectories of intellectual maturation in different populations. Systematic differences in the growth pattern suggest that the development of intellectual capacities proceeds at different rates and the maturation process can take longer in some populations than in others.
SPEARMAN'S HYPOTHESIS TESTED COMPARING SAUDI ARABIAN CHILDREN AND ADOLESCENTS WITH VARIOUS OTHER GROUPS OF CHILDREN AND ADOLESCENTS ON THE ITEMS OF THE STANDARD PROGRESSIVE MATRICES
In: Journal of biosocial science: JBS, Volume 49, Issue 5, p. 634-647
ISSN: 1469-7599
SummarySpearman's hypothesis tested at the level of items states that differences between ethnic groups on the items of an IQ test are a function of thegloadings of these items, such that there are small differences between ethnic groups on items with lowgloadings and large differences between ethnic groups on items with highgloadings; this has been confirmed in a limited number of studies. In this paper, Spearman's hypothesis was tested, comparing a group of Saudi children and adolescents (N=3209) with other groups of children and adolescents from Denmark, Cyprus, Croatia, Bosnia, South Africa, Estonia, Ukraine, Ireland, Russia and Chile (totalN=9333). The analyses were carried out on twelve comparisons between the Saudi Arabian children and the other children. Spearman's hypothesis was confirmed less strongly than in other large-scale studies with a mean weightedrvalue of 0.44. The relevance of these findings for the discussion on the causes of group differences is discussed.
A Social-Technological Model for the Evolution of Language [and Comments and Reply]
In: Current anthropology, Volume 26, Issue 5, p. 617-639
ISSN: 1537-5382