Kohlberg's stages of moral development are concrete operational, formal operational, and sensorimotor

Eysenck was critical of early rating forms and inventories used in personality research because

a) their authors mistakenly assumed that individuals answer questions truthfully. b) they were written at an above-average literacy level, which precluded their use by many individuals with poor reading skills. c) testing conditions that were identical for everyone could not be established. d) the tests were timed, which placed stress on the individuals taking them and lead to skewed results.

Many addictive drugs stimulate the pleasure centers of the

a. medulla. b. cerebellum. c. frontal cortex. d. limbic system.