Studies of pairs of twins like the Minnesota Study of Twins Reared Apart are examples of
A) correlational studies
B) true experiments
C) natural experiments
D) case studies

Question

Quizplus · Accepted Answer

The Minnesota Study of Twins Reared Apart and similar studies are considered natural experiments because they investigate the effects of environmental and genetic factors on twins who were raised in different environments, without the manipulation of variables by researchers.

Studies of Pairs of Twins Like the Minnesota Study of Twins