Changes

A 1976 year study that covered 258 children (IQ between 80 and 119) finally concluded that the major correlating factor is "a favorable parental social and educational background" <ref>Fisch RO, Bilek MK, Horrobin JM, Chang PN (1976) Children with superior intelligence at 7 years of age: a prospective study of the influence of perinatal, medical, and socioeconomic factors. Am J Dis Child. 1976 May;130(5):481-7. Abstract available at

A 1976 year study that covered 258 children (IQ between 80 and 119) finally concluded that the major correlating factor is "a favorable parental social and educational background" <ref>Fisch RO, Bilek MK, Horrobin JM, Chang PN (1976) Children with superior intelligence at 7 years of age: a prospective study of the influence of perinatal, medical, and socioeconomic factors. Am J Dis Child. 1976 May;130(5):481-7. Abstract available at

  https://www.ncbi.nlm.nih.gov/pubmed/1274898</ref>. The more recent 2016 year study also showed that the measured IQ potential is significantly lower in developing countries. <ref name='kodila'>Kodila-Tedika O1, Asongu SA2, Azia-Dimbu F3. (2016) J Biosoc Sci. 2016 May 26:1-13, available at [https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2661437]

  https://www.ncbi.nlm.nih.gov/pubmed/1274898</ref>. The more recent 2016 year study also showed that the measured IQ potential is significantly lower in developing countries. <ref name='kodila'>Kodila-Tedika O1, Asongu SA2, Azia-Dimbu F3. (2016) J Biosoc Sci. 2016 May 26:1-13, available at [https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2661437]

Statistics and intelligence in developing countries</ref> and increases after the national statistics to improves (<ref name='kodila'/> references [[Nigeria]] and [[Kenya]]).  

Statistics and intelligence in developing countries</ref> and increases after the national statistics improves (<ref name='kodila'/> references [[Nigeria]] and [[Kenya]]).