The CDC generated a great deal of attention for it "zombie preparedness" page. I have been concerned that the effort generated more heat than light (more attention than action). An evaluation report is finally in. My initial reading suggests that there is still no evidence of changed individual preparedness -- just evidence of attention -- but this may be of interest to many. It does illustrates a common problem in evaluation. Assessing attention is much easier that assessing actual changes in behavior or other policy outcomes. Evaluation often involves the easy to observe rather than the intended (but often difficult to measure) outcome.
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