Phase III: Field testing & scale
revision
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Random sample each state
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Preletter inviting participation
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Mail questionnaire & scantron sheet
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Tickler follow-up: second & third packets
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Small incentive for participation
Initial sample size of 1,000 selected families will be chosen to ensure at least a 30% response rate; or 300 questionnaires per state. Similar protocol by PRAMS (CDC) for administration
58% response rate through 3 mailing cycles