Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Psychology - UGC Human Development and Interventions

Which of the following would be the best method for studying the relative contribution of heredity and environment? 

1
Comparing identical and fraternal twins reared together 
2
Comparing identical and fraternal twins reared apart
3
Comparing siblings reared together and reared apart
4
Comparing identical and fraternal twins ; half of whom have been reared apart 
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