Regional Differences in Intelligence in Egypt: A Country Where Upper Is Lower

Abstract

SummaryTwo administrations of the Coloured Progressive Matrices in Egypt were compared. The first was administered to a large, representative national sample between 2011 and 2013. The second was administered to primary school pupils in villages in Menoufia in northern Egypt in 2017. Adjusting for the Flynn Effect, the IQ of the rural northern Egyptians was shown to be statistically significantly higher than the national average. It is demonstrated that this is consistent with regional socioeconomic differences in Egypt, which strongly imply that northern Egypt has a higher average IQ than southern Egypt.

Spearman’s hypothesis tested comparing Korean young adults with various other groups of young adults on the items of the Advanced Progressive Matrices

“…Lynn (2010) showed that there are large regional differences between the north and the south of Italyboth White groups. Similarly, regional differences in IQ have been reported between the different regions of the UK (Carl, 2016a, b), Spain (Lynn, 2012), Turkey (Lynn et al, 2015), Japan (Kura, 2013) and between northern and southern Egypt (Dutton et al, 2018). These regional differences should also show Jensen effects.…”

Spearman’s Hypothesis Tested Comparing 47 Regions of Japan Using a Sample of 18 Million Children

“…Kura reported mean IQ scores for the different regions of Japan and showed a large difference between the highest-scoring region and the lowest-scoring region [37]. Similarly, regional differences in IQ, often correlating in the expected direction with measures such as wealth and educational level, have been reported between, for example, the different regions of the UK [38,39], Spain [40], Germany [41], Turkey [42], and between northern and southern Egypt [43], though they do not test Spearman's hypothesis.…”