Examlex
Please define the following key terms.
-National Insurance Act of 1911
Double-blind Study
A research method in which neither the participants nor the experimenters know who is receiving a particular treatment, thereby eliminating bias.
Control Group
A control group is a group in an experiment or study that does not receive the experimental treatment and is used as a benchmark to measure the effects of the treatment.
Blind Observer
An individual who assesses experimental data without knowledge of the test subjects' conditions to prevent bias in research findings.
Blind Observations
A research method where the observers are unaware of the participants' conditions or the expected outcome of the experiment to prevent bias.
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