Which of the following is not a characteristic of correlational studies?
a. They help researchers understand cause and effect
b. They indicate the strength of a relationship between variables.
c. When two variables are highly related, knowledge about one variable can be used to make predictions about the other variable.
d. They are helpful in generating hypotheses for experimental research.
a
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In operant conditioning, negative reinforcement occurs whenever:
a. the presentation of a stimulus following a response increases the likelihood of the response's occurring again b. the presentation of a stimulus following a response decreases the likelihood of the response's occurring again c. the removal of a stimulus following a response increases the likelihood of the response's occurring again d. the removal of a stimulus following a response decreases the likelihood of the response's occurring again
What prescriptions, when taken by women before they were aware they were pregnant, could also cause fetal damage?
a) birth control b) AZT c) DES (diethylstilbestrol) d) thalidomide
The selective serotonin re-uptake inhibitors:
a. Opens the serotonin pump so that serotonin is inhibited. b. Block the serotonin re-uptake pump so that serotonin stays in the synapse. c. Electively inhibits serotonin production. d. Promotes the uptake of inhibitors that produce serotonin.
As the night progresses and the individual continues to sleep, he or she experiences:
a. more Stage 4 sleep. b. more Stage 3 sleep. c. less Stage 2 sleep. d. more REM sleep.