Suppose you are waiting for the 6 p.m. news on TV. Every so often, you take a quick glance at the clock to see if it is now 6 p.m. The frequency with which you look at the clock will most likely resemble the response pattern produced by a _____ schedule of reinforcement

The most important variable in the determination of the extent of harm a teratogen can cause

to an organ or system depends upon the a. amount of the teratogen. b. quality of the teratogen. c. timing of the exposure to the teratogen. d. mother's response to the teratogen.

Erikson's theory of psychosocial development states that personality development takes place in ________ that represents a conflict the individual must try to resolve

a. regular cyclical periods of approximately 7 years throughout life b. spurts that correspond to physical growth periods c. distinct stages over the life span d. distinct stages until adolescence