A college administrator is trying to assess whether an admission test accurately predicts how well applicants will perform at his school. The administrator is most obviously concerned that the test is

Amphetamines __________ dopamine, whereas antipsychotic drugs __________

dopamine. a. stimulate the release of; prevent the release of b. prevent the release of ; stimulate the release of c. stimulate receptors for; block receptors for d. prevent reuptake of ; stimulate reuptake of e. block receptors for; stimulate receptors for

Children between the ages of two and seven years are in which cognitive stage of development?

a. formal operational b. sensorimotor c. concrete operational d. preoperational