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What are the two main periods of Roman history called?
Placebo Effect
The phenomenon in which a person experiences a physiological or psychological improvement after being treated with an inert or ineffective substance or intervention.
Sampling Bias
A bias that occurs when a sample is not representative of the population from which it was drawn, potentially leading to inaccurate conclusions.
Social Desirability
The tendency of respondents to answer questions in a manner that will be viewed favorably by others, potentially skewing research data.
Double Blind Procedure
A research method in which both the participants and the experimenters are unaware of who is receiving a particular treatment, used to prevent bias in experimental results.
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