On Beyond BACI¶
Underwood, A. J. (1994). On Beyond BACI: Sampling Designs that Might Reliably Detect Environmental Disturbances. Ecological Applications, 4(1), 3-15.
Cited by¶
2 citations across 2 artifacts.
Each citation links to the sentence it supports in the citing article.
Mechanisms¶
- Before–After–Elsewhere Evaluation
- The discipline is to fix the comparison sites and window before the results are in, to keep observation symmetric, and to scan several plausible destinations — the logic of a Before-After-Control-Impact design, whose whole power comes from the untreated comparison arm.
This sourceShows that BACI designs compare before/after observations at impacted and control locations and argues for several control locations to obtain reliable impact tests.
- The discipline is to fix the comparison sites and window before the results are in, to keep observation symmetric, and to scan several plausible destinations — the logic of a Before-After-Control-Impact design, whose whole power comes from the untreated comparison arm.
- Pilot Constraint Lift
- Measure the delta against the controls and decide. A before-after-control-impact comparison
This sourceBACI is an impact-assessment design, but reliable attribution requires sampling that separates an impact from location-specific temporal change.
- Measure the delta against the controls and decide. A before-after-control-impact comparison
Verification¶
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