Question

Explain and Analyse the role of hereditary influences on intelligence.

Answer 1

To know about the hereditary influences on intelligence. The analysis is conducted mainly on twins and adopted children.

The observation are as follows:

• The intelligence of identical twins brought up together mostly shows 90% similarity.

•Twins separated in their childhood also shows similarity in terms of behaviour, personality and intellectual characteristics.

• The intelligence of identical twins brought up in different environment is almost 72%.

• Faternal twins brought up together shows intelligence similarity of about 60%.

• Brothers and sisters brought up together shows intelligence similarity of about 50% .

• Siblings which are brought up separately shows intelligence similarity of about 25%.

• In case of adopted children intelligence is more close towards their biological parents rather than adoptive parents. As they grow, they slowly start picking up and get closer with intelligence of their adoptive parents.

• Children which are comes from deprived homes and later adopted in families having good food, good family background and quality schooling makes their intelligence improved.

• So mostly all psychologists come to a conclusion that Intelligence is a product of complex interaction of hereditary and environment.

 

To know about the hereditary influences on intelligence.The analysis is conducted mainly on twins and adopted children.