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an effect that is impacted by the power of 2

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12y ago
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5mo ago

A quadratic effect in statistics refers to a non-linear relationship between a predictor variable and an outcome. It indicates that the relationship between the predictor and outcome is best described by a curve rather than a straight line, often taking the shape of a parabola. This effect is commonly assessed by including the predictor variable and its squared term in regression models.

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Q: What is the statistical definition of a quadratic effect?
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