Dr. Jayden is studying the effect of exercise on cholesterol level. He first measures his patients' cholesterol level before recommending an exercise program, and after one month of participating in an exercise program, he measures their cholesterol level again. What type of research design has Dr. Jayden employed?
A. between groups design
B. missing control group design
C. one group pretest-posttest design
D. one-shot case study
Answer: C
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Acquiring domain-specific expertise tends to lead to
a. great improvement in cognitive skills in unrelated areas. b. improved cognitive skills in areas related to the domain. c. increased fuzzy traces. d. utilization deficiency.
The major advantage of cluster sampling over simple random sampling is that it
a. saves time and money b. yields more reliable research findings c. yields a higher degree of randomness in heterogenous populations d. yields a higher degree of randomness in homogeneous populations
Each of the following is probably true of lower-class members EXCEPT they ______
a. have higher levels of hostility b. have an internal locus of control c. have fewer people and fewer community resources they can turn to for help during hard times d. do not cope with their difficulties as well as those in the upper classes
Psychoactive drugs can be placed on a scale ranging from
a. addiction to withdrawal. b. dependency to addiction. c. stimulation to depression. d. hallucinogenic to analgesic.