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Instructions: Identify the Terms and Briefly State Their Historical Significance

question 93

Essay

Instructions: Identify the terms and briefly state their historical significance.
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Definitions:

Positive Correlation

A relationship between two variables where they move in the same direction.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases.

Controlled Variable

A factor in an experiment which is kept constant to test the relative impact of an independent variable.

Placebo Effect

The phenomenon in which a person's symptoms can improve due to their belief in the efficacy of a treatment with no therapeutic value.

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