If the correlation between the shyness of a sample of dizygotic twin pairs is .25 and the correlation between the shyness of a sample of monozygotic twin pairs is .50, then the heritability coefficient for shyness is

A) .125.
B) .250.
C) .500.
D) 2.00.

Heritability Coefficient

The heritability coefficient is a statistical measure that estimates the proportion of variation in a population's traits that can be attributed to genetic differences among individuals.

Dizygotic Twin

Dizygotic twins, also known as fraternal twins, are siblings born from two separate eggs fertilized by two different sperm cells, resulting in them being genetically distinct, much like regular siblings.

Monozygotic Twin

Twins that are genetically identical as they were formed from a single fertilized egg that split into two, providing unique opportunities for research into the nature vs. nurture debate.