Standard Errors and Confidence Intervals of Norm Statistics for Educational and Psychological Tests Dataverse

This folder contains the SPSS macro ‘norms.sps’ and the SPSS data file ‘norms.sav’, and the R script file ‘norms.R’ and the R data file ‘norms.Rdata’. It is assumed that the files have been saved in the directory ‘C:\mydir’. This can be changed to another directory if required. It may be noted that function NORMS in SPSS can have one argument only, and does not work well for variables whose values have been given a value label. The output contains for each norm statistic: the point estimates, the SEs, and the lower (LO) and upper (UP) bounds of the Wald-based confidence interval.