A team of researchers is asked to determine the effectiveness of a psychological intervention on the reduction of school violence. What is the best method the researchers could use to test whether the intervention worked?
a. Give a self-report survey to people who received the intervention.
b. Observe the schools that received the intervention.
c. Compare the level of violence at the schools before and after they received the intervention.
d. Design an experiment comparing schools that received the intervention and those that did not based on random assignment.
Answer: D
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What is the zone of proximal development?
a. Length of time needed to accommodate b. Distance between the radius of significant others and development c. Length of time needed to assimilate d. Distance between developmental level and level of potential development
Although eating disorders occur less frequently than anxiety or mood disorders, they should be a major concern because
a. they have the highest death rate of any major mental disorder. b. the relapse is quite significant. c. they affect males and females equally. d. those with the disorders almost always seek treatment.
Suppose you are interested in how participants perform under different temperature conditions. You select 30 participants and assign them to work in one of three rooms. The rooms differ only with respect to temperature. You instruct all participants to solve the same jigsaw puzzle, and then you measure how long it takes each one to finish. This research is an example of
a. a correlational study. b. population measurement. c. an experimental study. d. the use of descriptive statistics.
The reticular formation is involved with regulation of
A. appetite. B. heart rate and respiration. C. sexual activity. D. consciousness and arousal.