A nonparametric approach to the analysis of three-treatment three-period crossover designs
三处理三时期交叉设计的非参数分析
SUMMARY In this paper, we present a nonparametric approach to test hypotheses concerning carryover effects and direct treatment effects in crossover designs consisting of replicated sets of two Williams squares of order three. The methodology is based on finding unbiased estimates of the effects within each replication and transforming the analysis of the original design into one for a randomised block design. Therefore the well-known rank tests for this latter design can be…