Correlation studies are often used to help determine whether certain characteristics are controlled more by genetic influences or by environmental influences. These studies often examine adopted...

Correlation studies are often used to help determine whether certain characteristics are controlled more by genetic influences or by environmental influences. These studies often examine adopted children and compare their behaviors with the behaviors of the birth parents and their adoptive parents. One study examined how much time individuals spend watching TV (Plomin,Corley, DeFries & Fulker, 1990) The following data are similar to the results obtained in the study.

What percentage of the variance in the children's scores would be accounted for?

Extracted text: Amount of Time Spent Watching TV Adopted Children Birth Parents Adoptive Parents 2 1 3 3 4 4 1 1 3 1 2 3 5 3 2 1 3 3 3