| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6967128 | Accident Analysis & Prevention | 2012 | 7 Pages |
Abstract
⺠Eight designs for before-and-after studies are compared. ⺠Estimates of effect are found to differ between the study designs. ⺠The empirical Bayes approach is methodologically stronger than traditional approaches for before-and-after studies. ⺠Two simple methods for controlling for regression-to-the-mean are tested. ⺠The methods were not found to be reliable and their use is discouraged.
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Authors
Rune Elvik,