The research hypothesis is that aromatherapy reduces stress more effectively than does acupuncture. The researcher does not identify a control group. This study would be a(n) _________ design
a. experimental
b. quasi-experimental
c. survey
d. meta-analysis
ANS: B
Correct: In quasi-experimental studies, a control group, randomization, or the manipulation of one or more variables is missing.
Incorrect:
a. An experimental design must have a control group.
c. The purpose of a survey design is to collect information, not to compare groups.
d. A meta-analysis is a process whereby multiple research studies are reviewed.
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