Marshall randomly selected 250 students from a large university to study their use of drugs and alcohol. A. Probabilit
QUESTION 1
Marshall randomly selected 250 students from a large university to study their use of drugs and alcohol.
A. Probability
B. Nonprobability
QUESTION 2
Casey randomly assigned 152 elders recruited from five nursing homes to a foot massage or wait-list group to assess effects on levels of depression.
A. Nonprobability
B. Probability
QUESTION 3
Kendall randomly assigned postsurgical patients to aromatherapy (oil of pepermint) or usua care, to assess effects on nausea.
A. Experimental
B. Nonexperimental
C. Quasi-experimental
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