Bess has been using Valium for two years even though it impairs her work performance and jeopardizes her safety.She often drives while intoxicated by the medication. She shows neither tolerance nor withdrawal. According to the DSM-5, Bess's drug use illustrates ____
a. substance intoxication c. substance use disorder
b. substance dependence d. substance-induced disorder
C
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A factory worker who gets paid $50 for every 100 carburetors he assembles is reinforced
according to a ____________ schedule. a. variable interval b. fixed interval c. fixed variable d. variable ratio e. fixed ratio
In an experiment, researchers wanted to know whether changing the level of lighting in a factory would have an effect on the productivity of employees
In order to address this question, employees were randomly assigned to three separate identical work areas, but the lighting was set at a different level in each of the work areas. Then, employees in all three work groups began to operate machinery that produced small electrical components. The number of components produced by each group was carefully tallied at the end of each 8-hour shift. In this example, the hypothesis is the ________. a) presence or absence of the researchers will affect productivity b) number of components produced will not change because of lighting c) level of lighting will affect employee productivity d) employees chosen to participate in the research will affect productivity
If a researcher obtains a null finding, then what is the decision?
A. The researcher correctly rejected the null hypothesis. B. The researcher incorrectly rejected the null hypothesis. C. The researcher correctly retained the null hypothesis. D. The researcher failed to make a decision.
Which of the following is true about the famous chimpanzee Was hoe?
a) She learned to lie and to make jokes. b) She learned to use only about 10 signs. c) She learned to make original combinations of signs. d) She learned to say 100 words in English.