10

Set 1: Inferences (Intermediate)

Explanation

Answer: C

PASSAGE

A longitudinal study followed pairs of identical twins raised separately. Despite never meeting, many pairs showed remarkable similarities in occupation, hobbies, and even quirks like nail-biting. However, twins raised apart showed greater differences in personality traits like openness and agreeableness.

What can be inferred about the nature versus nurture debate from this study?

A. Genetics completely determine all human characteristics.
B. Environment has no effect on human development.
C. Both genetic and environmental factors contribute to different aspects of personality.✓ Correct
D. Identical twins raised apart are completely different.

Detailed Explanation

Similarities in occupation/hobbies (genetics?) but differences in personality traits (environment?) = both factors matter.

Key Evidence:

• "remarkable similarities in occupation, hobbies"

• "greater differences in personality traits"

Why others are wrong: A (Personality differences suggest environment matters too.), B (Differences in separated twins show environmental impact.), D (They had 'remarkable similarities' in many areas.).

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