BoneauC. A.The effects of violations of assumptions underlying the t test. Psychol. Bull., 1960, 57, 49–64.
2.
NefzgerM. D., & DrasgowJ.The needless assumption of normality in Pearson's r.Amer. Psychologist, 1957, 12, 623–625.
3.
NortonD. W.An empirical investigation of some effects of non-normality and heterogeneity on the F-distribution. Unpublished doctoral dissertation, State Univer. of Iowa, 1952.