Adults spend less time at work than they did 20 years ago

If the instructor walks in the class the day after the CR has been extinguished and

raps on the overhead, the startle response may reappear. This would be an example of (a) spontaneous recovery (b) reverse extinction (c) generalization (d) discrimination (e) negative extinction

The nonspecific immune response attains immunities both naturally and artificially

Indicate whether the statement is true or false