Using Propensity Score Subclassification for Multiple Treatment Doses to Evaluate a National Antidrug Media Campaign

Elaine Zanutto, Bo Lu and Robert Hornik

Journal of Educational and Behavioral Statistics, 2005, vol. 30, issue 1, 59-73

Abstract: In 1998, the U.S. Office of National Drug Control Policy launched a national media campaign in an effort to reduce and prevent drug use among young Americans. Because the campaign was implemented nationwide, there is no control group available for use in evaluating the effects of the campaign. Nevertheless, it is possible to use propensity score methods to evaluate the effects of the campaign. However, because teens receive varying degrees of exposure to the media campaign, it is necessary to apply propensity score methods that accommodate multiple treatment doses. This work extends that of previous authors to subclassification on the propensity score for observational studies with multiple treatment doses, rather than matching on the propensity score, and proposes modifications to accommodate complex survey data. This methodology is illustrated using data from a pilot study for the media campaign evaluation.

Keywords: complex survey; McCullagh’s ordinal logit model; observational study; propensity score; subclassification; survey weights (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:sae:jedbes:v:30:y:2005:i:1:p:59-73

DOI: 10.3102/10769986030001059

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