Suppose a rat working on a ratio schedule is pressing a lever 10 times per minute and earning 30 reinforcers per hour. How many reinforcers per hour will the rat earn if it starts pressing the lever 20 times per minute?
a. 50
b. 45
c. 300
d. 60
Ans: d
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Kant believed that the categories of thought are:
a. relatively unimportant. b. derived from experience. c. innate. d. present everywhere in nature.
What is "double depression"?
a) bipolar mood disorder b) two episodes of depression c) helplessness and hopelessness d) comorbid dysthymia and major depression
In the context of Berkowitz' studies of aggression, ‘stimulus pairing’ refers to:
a. a generalized emotional reaction to aggression-related stimuli b. a specific emotional response to pairs of aggressive stimuli c. the activation of a series of aggression-related thoughts and feelings by a certain stimulus such as a gun d. an increase in emotional response due to repeated exposure to aggression e. a diversity of emotional responses which have been paired with particular stimuli
For the Pearson r, the sample size, not the value of r, determines the
number of degrees of freedom. Indicate whether the statement is true or false