The dataset, formatted as a Lertap 5 Excel workbook, may be downloaded from this link.


The dataset has 25 items and three demographic variables: gender, age in years, and education level.  Data for 2,800 people are included.


If the demographic variables will be used with Lertap, for example, to get group- or item-breakouts, then the demographic data should be recoded in order to avoid a problem Lertap has with numeric variables when breakouts are requested. Lertap has a recoder which may be used for this very purpose. If you use it, you might do well to read the caveat on this page first.


Note that the data have been imported from the R psych package. If you are using R, and have installed the psych package, there wouldn't be any need to download the dataset.