What can I do to prevent selection bias?

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Stella

2020年5月13日

What can I do to prevent selection bias?

How can I prevent selection bias?

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Tsz Ching

2020年5月19日

Welcome. I am happy to share!

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Stella

2020年5月19日

Thanks!

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Tsz Ching

2020年5月19日

The best way to avoid selection bias is to use randomization. Randomizing the selection of participants into treatment and control groups ensures that the two groups are comparable in terms of observable and unobservable characteristics. Non-randomized evaluations attempt to avoid selection bias by making the control group as comparable as possible, typically by matching on observables. The more information is available for matching, the more convincing this is.

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