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3 votes
The best evidence supporting the role of genetic factors in intelligence is provided by studies that compare? 1) identical and fraternal twins 2) children raised in poverty and middle-class children 3) people born in different generations since the 1930s 4) children to both their biological and adoptive parents

1 Answer

7 votes

Answer: 1) identical & fraternal twins

Step-by-step explanation:

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User Smithy
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