The Relationship between Language and Intelligence. Review of Historical Research: Summary #5.

Through standard intelligence testing, it is widely believed that there is a positive correlation between language ability and mental intelligence. However, this relationship has always been questioned. In many intelligence tests, the understanding and use of words plays a very important role. There was a question as to whether the child acquired a high score in the language proficiency exam, or whether he / she is superior in language ability depending on language ability. A review of historical research deals with the relationship between language and intelligence. This review focuses on cognitive development studies. This is related in a sense to various definitions of intelligence. (Including 53 research bibliographies published between 1926 and 1969) (NKA)

Bouchard and McGud (1981) reviewed 111 studies in the field of family similarity measurement intelligence. The purpose of the review is to provide a comprehensive summary of the literature on IQ correlation between relatives. In general, the commentary reports that the higher the proportion of genes shared by two families, the higher the average correlation between those IQs. "The pattern of average correlation is very consistent with pylorus theory, this is not to ignore the importance of environmental factors.Two twin twins raised alone are not perfectly related genetic decision There is no doubt; their information on the exact strength of this effect is questionable. "Buouchard and McGue. (1981)

Through standard intelligence testing, it is widely believed that there is a positive correlation between language ability and mental intelligence. However, this relationship has always been questioned. In many intelligence tests, the understanding and use of words plays a very important role. There was a question as to whether the child acquired a high score in the language proficiency exam, or whether he / she is superior in language ability depending on language ability. A review of historical research deals with the relationship between language and intelligence. This review focuses on cognitive development studies. This is related in a sense to various definitions of intelligence. (Including 53 research bibliographies published between 1926 and 1969) (NKA)