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Differences in Achievement Not in Intelligence in the North and South of Italy: Comments on Lynn (2010a, 2010b)
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D'Amico, Antonella; Cardaci, Maurizio; Di Nuovo, Santo; Naglieri, Jack A. – Learning and Individual Differences, 2012
Lynn (2010a, 2010b) argued that individuals from south Italy have a lower IQ than individuals from north Italy, and that these differences in IQ are at the basis of north-south gap in income, education, infant mortality, stature, and literacy. In the present paper, we discuss several theoretical and methodological aspects which we regard as flaws…
Descriptors: Intelligence, Intelligence Quotient, Foreign Countries, Cognitive Ability
The Sensitive, Imaginative, Articulate Art Student and Conservative, Cool, Numerate Science Student: Individual Differences in Art and Science Students
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Furnham, Adrian; Crump, John – Learning and Individual Differences, 2013
In all 794 young people aged around 30 yrs completed three intelligence (Raven's Progressive matrices: GMA Numerical and GMA Verbal) and one personality inventory (16PF). They were all graduates and 173 were identified clearly as Arts graduates and 518 as Science students. There were various sex differences on all measures. All seven hypotheses…
Descriptors: Individual Differences, Intelligence Tests, Personality Measures, Art Education
Raven's Test Performance of Sub-Saharan Africans: Average Performance, Psychometric Properties, and the Flynn Effect
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Wicherts, Jelte M.; Dolan, Conor V.; Carlson, Jerry S.; van der Maas, Han L. J. – Learning and Individual Differences, 2010
This paper presents a systematic review of published data on the performance of sub-Saharan Africans on Raven's Progressive Matrices. The specific goals were to estimate the average level of performance, to study the Flynn Effect in African samples, and to examine the psychometric meaning of Raven's test scores as measures of general intelligence.…
Descriptors: Intelligence, Academic Achievement, Predictive Validity, Foreign Countries
Another Failure to Replicate Lynn's Estimate of the Average IQ of Sub-Saharan Africans
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Wicherts, Jelte M.; Dolan, Conor V.; Carlson, Jerry S.; van der Maas, Han L. J. – Learning and Individual Differences, 2010
In his comment on our literature review of data on the performance of sub-Saharan Africans on Raven's Progressive Matrices, Lynn (this issue) criticized our selection of samples of primary and secondary school students. On the basis of the samples he deemed representative, Lynn concluded that the average IQ of sub-Saharan Africans stands at 67…
Descriptors: Legislators, Academic Achievement, Intelligence Quotient, Foreign Countries
Variation in Raven's Progressive Matrices Scores across Time and Place
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Brouwers, Symen A.; Van de Vijver, Fons J. R.; Van Hemert, Dianne A. – Learning and Individual Differences, 2009
The paper describes a cross-cultural and historical meta-analysis of Raven's Progressive Matrices. Data were analyzed of 798 samples from 45 countries (N = 244,316), which were published between 1944 and 2003. Country-level indicators of educational permeation (which involves a broad set of interrelated educational input and output factors that…
Descriptors: Intelligence Tests, Nonverbal Tests, Scores, Regional Characteristics