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It is a categorical variable such as a subject's gender or race which are not experimental conditions but are still included into the statistical analysis as a mean of statistical control.

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14y ago
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7mo ago

A blocking variable is a variable that is included in a statistical analysis to account for the effects of that variable on the outcome of interest. By including a blocking variable, researchers can control for potential confounding factors and ensure that the relationship being studied is accurately captured. Blocking variables are commonly used in experimental design to improve the precision and validity of study results.

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Q: What is a blocking variable?
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