A researcher sets up an experiment to test a new antidepressant medication. One group receives the treatment, and the other receives a placebo. The researcher then measures depression using a standardized self-report measure
What is the independent variable in this case?
a. Whether the individuals scored high or low on the depression measure
b. Whether the individuals received the treatment or a placebo
c. Whether the individuals were experiencing depression before the study began
d. Whether the individuals, depression decreased or increased during the study period
Answer: B
Rationale: This is the variable that the experimenter manipulates to distinguish between the two groups.
You might also like to view...
When one's actions or remarks support others and sustain interactions, they can be described as engaging in ____ exchange
a. enabling b. constricting c. detracting d. centrating
Briefly explain the function of the cell body, dendrites, axon, myelin sheath, and end bulbs. Make sure to specify where the structures are located.
What will be an ideal response?
When a review of the literature reveals many articles on the topic, but many of them report opposite results, a ________ may be a useful tool for evaluating the topic
a. Factor analysis b. Meta-analysis c. Program evaluation d. Quasi-experimentation
Karen started using meth when she was 15. Now she is 35 and continues to use meth. What is true of Karen?
A. Karen no longer finds food or sex very exciting. B. Karen is not addicted to meth. C. Karen also uses psychedelic drugs. D. Karen no longer gets much dopamine increase from the places where she uses meth.