کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1150727 957981 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The power of Efron's biased coin design
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
The power of Efron's biased coin design
چکیده انگلیسی

The power of a statistical test depends on the sample size. Moreover, in a randomized trial where two treatments are compared, the power also depends on the number of assignments of each treatment. We can treat the power as the conditional probability of correctly detecting a treatment effect given a particular treatment allocation status. This paper uses a simple z-test and a t-test to demonstrate and analyze the power function under the biased coin design proposed by Efron in 1971. We numerically show that Efron's biased coin design is uniformly more powerful than the perfect simple randomization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Statistical Planning and Inference - Volume 136, Issue 6, 1 June 2006, Pages 1824–1835
نویسندگان
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