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The spa manager surveys 100 random customers about their opinions on a new service being offered at the spa.Based on the results of that random sample,managers at the spa can make assumptions about whether or not the new spa service would go over well.This is an example of ________.
Intervention Group
A group in a scientific study that receives the treatment or intervention being tested, as opposed to a control group which does not.
Control Group
A group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.
Masking
A method used in research where the participants and/or researchers are unaware of which individuals are in the control group and which are in the experimental group, to prevent bias.
Confounding
A situation in which the effect of two variables on a third is not clearly distinguishable.
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