A new nonparametric Levene test for equal variances
Tests of the equality of variances are sometimes used on [...]
Hazards in choosing between pooled and separate-variances t Tests
If the variances of two treatment groups are heterogeneous and, [...]
Impact of Differential Item Functioning on Subsequent Statistical Conclusions
This simulation study investigated the impact of differential item functioning [...]
Bias in Estimation and Hypothesis Testing of Correlation
This study examined bias in the sample correlation coefficient, r, [...]
The Robustness of Validity and Efficiency of the Related Samples t-Test in the Presence of Outliers
The performance of the related samples t-test (a one-sample t-test [...]