The sampling technique that involves choosing individuals from the population such that individuals from the population who volunteer are selected ______.
a. simple random sample
b. quota sample
c. haphazard sample
d. stratified random sample
Ans: C
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Dr. Pow is interested in whether exposure to TV advertisements has a different impact on girls' self-image than it does on boys' self-image. To examine this question, she conducts a quasi-experiment. Why doesn't Dr. Pow conduct a true experiment instead?
a. She cannot conduct a true experiment, because people cannot be randomly assigned to be "girls" or "boys." b. She cannot conduct a true experiment, because self-image is not directly observable. c. She could conduct a true experiment if she wanted to, but she probably has a very small sample size, so in this case a quasi-experiment is better. d. She could conduct a true experiment if she wanted to, but she is probably interested in "real-life" TV exposure (and probably doesn't want to manipulate this variable).
In 1973 ________ was removed from the list of mental illnesses
A) alcoholism B) homosexuality C) anorexia D) schizophrenia
Progressive muscle relaxation is the first step in:
A. client-centered therapy. B. flooding. C. aversion therapy. D. systematic desensitization.
One study found that the cells of highly stressed women looked like those of women at least ten years older. One reason for this increased cell damage may be linked to:
a. the shortening of telomeres. b. the lengthening of telomeres. c. an increase in the number of natural killer cells. d. a decrease in the number of natural killer cells.