Research Article
Estimating the Effectiveness of Health-Risk Communications with Propensity-Score Matching: Application to Arsenic Groundwater Contamination in Four US Locations
Table 3
Marginal effects from probit regressions on two reduced form models (basic and expanded) of point-of-use filter use among survey respondents in regions with arsenic contamination of groundwater.
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Marginal effects of indicator variables calculated as a discrete change from 0 to 1. The referent category is OK. refer to statistical significance at less than or equal to 0.01, 0.05, and 0.1. |