The bdf data frame has 2287 rows and 25 columns of language
scores from grade 8 pupils in elementary schools in The Netherlands.
data(bdf)a factor denoting the school.
a factor denoting the pupil.
a numeric vector of verbal IQ scores
a numeric vector of IQ scores.
Sex of the student.
a factor indicating if the student is a member of a minority group.
an ordered factor indicating if one or more grades have been repeated.
a numeric vector
a numeric vector
a numeric vector
a numeric vector
a numeric vector
a numeric vector of socioeconomic status indicators.
a factor indicating of the school is a public school, a Protestant private school, a Catholic private school, or a non-denominational private school.
a numeric vector
a numeric vector
a factor with levels 0 and 1
a numeric vector
a numeric vector
a factor indicating if the class is a mixed-grade class.
a numeric vector
a numeric vector
a numeric vector
a numeric vector
a numeric vector
Snijders, Tom and Bosker, Roel (1999) Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling, Sage.