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Does the sample size affect the comparability of groups?

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Dicky
2020年5月19日
Does the sample size affect the comparability of groups?

Does the sample size affect the comparability of groups?

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Sunny
2020年5月25日

I am happy to answer your questions. =)

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Dicky
2020年5月25日

Thank you!

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Sunny
2020年5月25日

Yes and no. Yes is because the comparability or similarity of the groups is much more likely to occur if the population is large. Even the random assignment may not produce equivalence if the sample size is small.
No is because a large sample size doesn’t guarantee comparability. Efforts should be invested to assess whether the treatment and control groups are similar.

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