A researcher conducts an experiment on the effects of hostility on generosity.

To assess hostility, the researcher administers a hostility scale to participants. Based on the participants' scores on the hostility scale, the experimenter assigns the participants to low, medium, or high hostility groups. This is an example of a ________________ design.
a. single-factor subject
b. natural-groups
c. within-groups
d. matched-groups
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Asked Oct 17, 2014

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