Question

researchers have looked for many different characteristics in family structures. one study has examined the correlation of body mass index (bmi) scores across adolescent siblings. the table below illustrates the results of such a study.

type of sibling\tcorrelation of body mass index scores

adoptive siblings\t0.18

non - adoptive siblings\t0.33

fraternal twins\t0.34

identical twins\t0.74

which of the following concepts is represented in this data?
elimination tool
select one answer
a the relative effects of genetics and the environment
b statistical significance
c regression to the mean
d the relative effects of enriched childhood vs. deprived childhood

Explanation:

The table shows different types of siblings and their BMI - score correlations. Identical twins (who share 100% of their genes) have the highest correlation, followed by fraternal twins, non - adoptive siblings, and adoptive siblings (who share no genetic relationship). This indicates that genetic similarity is related to BMI similarity, showing the relative effects of genetics and the environment on BMI. There is no information about statistical significance, regression to the mean, or the effects of enriched vs. deprived childhood in this data.

Answer:

A. the relative effects of genetics and the environment