EFRON CONJECTURE ON VULNERABILITY TO BIAS IN A METHOD FOR BALANCING SEQUENTIAL TRIALS
成果类型：
Note
署名作者：
STEELE, JM
刊物名称：
BIOMETRIKA
ISSN/ISSBN：
0006-3444
DOI：
10.1093/biomet/67.2.503
发表日期：
1980
页码：
503504
关键词：
摘要：
Efron (1971) proposed a method for sequential assignment to treatments or control which is in many ways superior to traditional procedures. To analyze the method''s susceptibility to accidental bias, a criterion concerning the maximum eigenvalue of a fundamental covariance matrix was introduced. On the basis of numerical evidence, Efron conjectured an explicit formula for this eigenvalue. A proof of that conjecture is given.