What is the extent of influence of the shared environment and genetics on IQ score in children living in affluent and impoverished families?
For children living in both types of families, the influence of the shared environment is stronger than the influence of genetics.
For children living in both types of families, the influence of genetics is stronger than the influence of the shared environment.
For children living in affluent families, the influence of the shared environment is stronger than the influence of genetics, and the pattern is reversed for impoverished families.
For children living in impoverished families, the influence of the shared environment is stronger than the influence of genetics, and the pattern is reversed for affluent families.