If the heritability of a trait was .50, we would expect to see the highest concordance rates among:

People tend to eat more when they are in a group than when they eat alone. Which type of psychologist studies processes like this?

a. Developmental psychologist b. Organizational psychologist c. Cognitive psychologist d. Social psychologist

The secular trend of sexual maturation is an outcome of ____ during recent decades

a. teenagers' early promiscuous sex b. mutated changes in genotypes c. improved medical care and better nutrition d. changes in disciplinary styles practiced at home