Limitations

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9 Terms

1
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Non-linearity

What limitation arises when the true relationship is curved?

2
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Interpolation

What is predicting within the range of your data called?

3
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Extrapolation

What is predicting beyond the range of your data called?

4
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Unreliable

How trustworthy are extrapolated predictions?

5
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Outlier

What is an observation far from the general pattern called?

6
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Influential observation

What is a point that changes the fitted line substantially when removed?

7
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Edge of the predictor range

Where do outliers have the most influence on the line?

8
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Refit without it

How can you test whether one point is influential?

9
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Line only describes the data range

Why can a regression line predict absurd values far outside the data?