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Measured by blood test on children every 3 months. Families will take tests after each class to evaluate knowledge attained. So I am studying the causal relation of the blood lead levels and the family's level of knowledge. Chose a cohort study using a correlation test.

Hi there, here are the details. Study the association between parental knowledge of lead poisoning disease prevention practices and the incidence of lead poisoning among their children Intervention: 1 year Participants: 60 Program components; All participants attend 4 educational classes...