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An advantage of matching over holding a variable constant is that
Scientists
Professionals engaged in systematic activities to acquire knowledge that describes and predicts the natural world, typically through observations and experiments.
Correlation
A statistical measure that describes the size and direction of a relationship between two or more variables.
Changes Observed
Alterations or variations that have been noticed or recorded in a particular condition or situation over time.
Experimenter Bias
A form of bias introduced by the expectancies or preferences of the researcher that can affect the outcome of an experiment.
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