A(n) _____ group consists of subjects who receive some special treatment in regard to the independent variable
a. independent variable c. placebo
b. control d. experimental
D
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Behavior modification to reduce self-injurious behaviors has been most successful in programs that rely on the use of
a. extinction. b. punishment. c. response cost. d. positive reinforcement.
What type of validity is most concerned with whether there is a relationship between the variables?
a. conclusion b. construct c. internal d. external
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
The cause for somatic symptom and related disorders is most likely
A. biological. B. psychological. C. stressful life events. D. all of these are correct.