Simple randomization may lead to unequal group sizes. Is that a problem?
نویسندگان
چکیده
منابع مشابه
Unequal group sizes in randomised trials: guarding against guessing.
We cringe at the pervasive notion that a randomised trial needs to yield equal sample sizes in the comparison groups. Unfortunately, that conceptual misunderstanding can lead to bias by investigators who force equality, especially if by non-scientific means. In simple, unrestricted, randomised trials (analogous to repeated coin-tossing), the sizes of groups should indicate random variation. In ...
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ژورنال
عنوان ژورنال: American Journal of Orthodontics and Dentofacial Orthopedics
سال: 2018
ISSN: 0889-5406
DOI: 10.1016/j.ajodo.2018.07.005