CBdata {SNSequate}

Observed (raw) score values for two different tests

Description

The data set is from a small field study from an international testing program. It contains the observed scores for two tests X (with 75 items) and Y (with 76 items) administered to two independent, random samples of examinees from a single population P. For more details, see Chapter 9 in Von Davier et al, (2004) from where the data were obtained.

Usage

data(CBdata)

Format

A list with elements containing the observed scores of the sample taking test X first, followed by test Y (datX1Y2), and the scores of the sample taking test Y first followed by test X (datX2Y1).

References

Von Davier, A., Holland, P., and Thayer, D. (2004). The Kernel Method of Test Equating. New York, NY: Springer-Verlag.

Examples

data(CBdata)
## maybe str(CBdata) ; ...