On the Relationship Between the Johnson-Neyman Region of Significance and Statistical Tests of Parallel Within-Group Regressions
David Rogosa · Educational and Psychological Measurement · 1981
The form of the Johnson-Neyman region of significance is shown to be determined by the statistic for testing the null hypothesis that the population within-group regressions are parallel. Results are obtained for both simultaneous and nonsimultaneous regions of significance.