Multiple Choice

A large-scale study tracks pairs of siblings and measures the similarity of their intelligence scores, expressed as a correlation coefficient (where a higher value means more similarity). The results for three distinct groups are summarized below:

GroupIQ Score Correlation
Identical Twins (reared in separate homes)0.76
Fraternal Twins (reared in the same home)0.58
Adopted Siblings (reared in the same home)0.29

Based only on the data in this table, which of the following is the most valid conclusion?

0

1

Updated 2025-10-04

Contributors are:

Who are from:

Tags

Psychology

Social Science

Empirical Science

Science

Ch.7 Thinking and Intelligence - Psychology @ OpenStax

OpenStax

Psychology @ OpenStax

Introduction to Psychology @ OpenStax Course

OpenStax Psychology (2nd ed.) Textbook

Analysis in Bloom's Taxonomy

Cognitive Psychology