On the basis of several reviews of the literature, Lynn [Lynn, R.,(2006). Race differences in intelligence: An evolutionary analysis. Augusta, GA: Washington Summit Publishers.] and …
Traditional economic theories stress the relevance of political, institutional, geographic, and historical factors for economic growth. In contrast, human-capital theories suggest that …
Regional differences in IQ are presented for 12 regions of Italy showing that IQs are highest in the north and lowest in the south. Regional IQs obtained in 2006 are highly correlated …
Smart fraction theory supposes that gifted and talented persons are especially relevant for societal development. Using results for the 95th percentile from TIMSS 1995-2007, PISA …
It is easy for us to believe that as a society we are getting smarter, at least as measured by IQ tests. This supposed improvement, the Flynn Effect, suggests that each generation is …
JM Wicherts, CV Dolan, JS Carlson… - Learning and Individual …, 2010 - Elsevier
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 …
H Rindermann - Personality and Individual Differences, 2012 - Elsevier
Cognitive ability theory claims that peoples' competences are decisive for economic wealth. For a large number of countries Lynn and Vanhanen (2002) have published data on mean …
Numerous technical—scientific reports have demonstrated that student performance variability is linked to several factors, especially socioeconomic factors. For a century …