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Interventions to
address risky behaviors such as smoking cessation, inactivity, and poor diet
have been tested and shown to be efficacious. These studies have followed
standard rules of evidence for determining if an intervention was or was not
efficacious (see
www.consort-statement.org).
However other factors related to generalizability such as who might
benefit most from an intervention, which locations or delivery agents would
work best, or how many people would choose to use a program have not been as
fully evaluated. Methods to investigate how to "translate" efficacy studies
to effectiveness studies are needed.
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