If Jessica remembers her books and assignments for a week, her mom will take her for ice cream. Providing incentives for doing well on a task that will be accomplished in the future is known as a(n) _______ reward

The field of ______ studies the effects of psychological factors such as stress, emotions, thinking, and behavior on the immune system

a) social psychology b) organic medicine c) psychoneuroimmunology d) interactive psychology

Ramey's research on the effect of early intervention on intelligence are _____ studies, so we can see that the outcomes are a result of the intervention

a) longitudinal b) cross-sectional c) observational d) experimental