A researcher recruits participants for an experiment by posting an announcement in the psychology department asking for volunteers. What kind of sampling is being used?
a. quota
b. non-quota
c. probability
d. nonprobability
Question 2
After recent research showed that the caregivers of family members with developmental disabilities showed significant stress reduction when taught simple mindfulness techniques during everyday activities, Liese wonders whether the same might be true of the caregivers of family members with Alzheimer's disease. Liese will recruit participants from a local peer support program for caregivers but, knowing how stressful caregiving can be, worries about how she will create an ethically sound control group. Liese is most concerned with ____.
a. right to service
b. external validity
c. deception
d. non-maleficence
Chuckwalla body lengths at the end of a laboratory rearing experiment
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