The school23 data contains information on students' performance on a math test, as well as several explanatory variables. These data are subset of the NELS-88 data (National Education Longitudinal Study of 1988). Both a selected number of variables and a selected number of observations are given here.
Usage
data(school23)
Arguments
docType
data
source
These data are used in the examples given in Kreft & De Leeuw (1998). Both the examples and the data are publicly available from the internet: http://www.ats.ucla.edu/stat/examples/imm/. Data reproduced with permission from Jan de Leeuw.
Details
Labels for the factors were found in an appendix in Kreft & De Leeuw (1998). All labels were designated, although in some cases not all possible values are represented in the variable (i.e. region). This is probably due to the fact that this is only a subsample from the full NELS-88 data.
Also, some of the variable names were changed.
References
Kreft, I. and De Leeuw, J. (1998). Introducing Multilevel Modeling. Sage Publications.