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

Question

Quizplus · Accepted Answer

Without a control group, the study cannot be considered a true experimental design. Quasi-experimental designs often lack certain elements of a randomized controlled trial, such as a control group.

The Research Hypothesis Is That Aromatherapy Reduces Stress More Effectively