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Abt Perspectives Blog

Staying in Touch with Research Subjects Can Help Prevent Selection Bias in Prospective Cohort Studies  thumbnail

Staying in Touch with Research Subjects Can Help Prevent Selection Bias in Prospective Cohort Studies

To combat selection bias in long-term studies, researchers need to maintain a cohort of at least 80-90 percent of those who originally enrolled. But this takes time, effort, training, and sometimes a little lip balm.

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