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Current buyers' and sellers' behaviors are correctly expressed by
Control Group
In experimental research, the group of subjects that does not receive the treatment being tested, serving as a benchmark for measuring the effect of that treatment.
Experimental
Pertaining to or based on experiments, which are structured and controlled tests or investigations to establish or test a hypothesis.
Placebo
An inert or non-effective substance or treatment given to a participant in a study, used to contrast with an active substance to test its efficacy.
Test
An assessment or examination intended to measure a test-taker's knowledge, skill, aptitude, physical fitness, or classification in many other topics.
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