Random assignment of participants requires that _____
a. every person selected for the experiment has an equal chance of being assigned to any
one of the treatment groups
b. the selection of one person to participate in the experiment is independent of the
selection of any other person
c. all members of a population have an equal chance of being selected to participate in
the experiment
d. all the above
A
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Aside from television viewing being a sedentary activity, how else does watching TV contribute to obesity?
a. Children tend to watch shows that encourage sedentary activities. b. By showing children commercials for unhealthy foods. c. Watching TV is associated with eating healthy snacks. d. Watching TV takes time away from being with peers.
Graying and thinning hair are ____________
a) primarily genetically determined b) benign processes c) show wide variation in terms of age d) All of the above
The comparison of attention to a spotlight is based on the idea that the human mind, a spotlight cannot focus on everything at once.
Answer the following statement true (T) or false (F)
Experimenters can justify the use of deception because __________.
A. there is informed consent B. research is more important than people C. it may be necessary for the experiment to work D. it is not that harmful