A rat presses a lever in the presence of a 1000-Hz tone (which is an SD) but not in the presence of a 990-Hz or a 1010-Hz tone. The generalization gradient for the rat's behavior is relatively _____, indicating _____ discrimination
A) ?flat; strong
B) ?steep; strong
C) ?steep; weak
D) ?Both a and c are correct.
B
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For a perfectly symmetrical distribution with a median of 30, what is the value of the mean?
a. 30 b. Greater than 30 c. Less than 30 d. Cannot be determined from the information given
The snake is a universal symbol of evil. This is represented symbolically in art, folklore, and religious stories throughout time and across cultures. Which theorist would consider this observation as evidence to support his theory?
A. Freud B. Jung C. Adler D. Horney
Which of the following is true of helping behavior?
A. A bystander's perceived rewards for helping must be lower than the costs if helping is to occur. B. Most social psychologists agree that no single set of attributes differentiates helpers from nonhelpers. C. A rewards-costs analysis suggests that people are most likely to use the most costly form of implementation when helping someone. D. Most psychologists believe that prosocial behavior always contains an element of self-sacrifice.
Results from Mental Health Supplement of the Ontario Health Survey indicated that anxiety disorders were most common among:
a) Younger men b) Younger women c) Older men d) Older women