title: Timothy P. Johnson on Steve Magura's "Failure of intervention or failure of evaluation: a meta-evaluation of the National Youth Anti-Drug Media Campaign Evaluation"failure of intervention and evaluation?: a review of an anti-drug campaign evaluation.
authors.affiliation: Survey Research Laboratory, University of Illinois at Chicago, Chicago, Illinois 60607, USA. timj@uic.edu
authors.forename: Timothy P
authors.initials: TP
authors.lastname: Johnson
mesh_terms: D006293:Health Promotion / Q000379:methods*; D006801:Humans; D008385:Marijuana Smoking / Q000517:prevention & control*; D015397:Program Evaluation / Q000379:methods*