The merits of matching in community inte
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Neil Klar; Allan Donner
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Article
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1997
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John Wiley and Sons
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English
β 165 KB
π 2 views
Concern about potential imbalance on risk factors in community intervention trials often prompts researchers to adopt a pair-matched design in which similar clusters of individuals are paired and one member of each matched pair is then randomly assigned to the intervention group. It is known that if