When Comparing Shyness Scores for Twins, a Researcher Finds a High

Multiple Choice

When comparing shyness scores for twins, a researcher finds a high positive correlation between pairs of twins. What does this correlation by itself mean?

A) if one twin is shy the other twin is also likely to be shy
B) if one twin is shy the other twin will be outgoing
C) shyness is inherited
D) shyness is learned