A Primer on Regression Artifacts¶
Campbell, D. T., & Kenny. (1999). A Primer on Regression Artifacts. Guilford Press.
Cited by¶
3 citations across 3 artifacts.
Each citation links to the sentence it supports in the citing article.
Mechanisms¶
- Matched Extreme-Case Comparator
- This is the everyday form of the classic regression artifact — the spurious "effect" that appears whenever selected extremes are contrasted with non-selected cases.
This sourceThe cited work establishes This is the everyday form of the classic regression artifact and the spurious "effect" that appears whenever selected extremes are contrasted with non-selected cases.
- This is the everyday form of the classic regression artifact — the spurious "effect" that appears whenever selected extremes are contrasted with non-selected cases.
- Ordinary-Training Comparator Protocol
- It is also the natural guard against reading an ordinary up-and-down fluctuation as an effect — regression to the mean flatters any single arm measured from a low baseline, and only a matched comparator removes it.
This sourceExplains how regression toward the mean can make a group selected for an extreme baseline appear to improve on later measurement without a treatment effect.
- It is also the natural guard against reading an ordinary up-and-down fluctuation as an effect — regression to the mean flatters any single arm measured from a low baseline, and only a matched comparator removes it.
- Rolling Hotspot Recalibration
- Its signature trap is regression to the mean: a site flagged on a spike reverts on its own, and a naive before/after comparison credits the intervention for a drop that would have happened anyway.
This sourceExplains that units selected at an extreme measurement tend to be less extreme when remeasured, causing naive before/after evaluations to misattribute regression to an intervention.
- Its signature trap is regression to the mean: a site flagged on a spike reverts on its own, and a naive before/after comparison credits the intervention for a drop that would have happened anyway.
Verification¶
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Links previously used in the corpus¶
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