This is the dataset used throughout Raudenbush & Bryk (2002).

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A tibble with 7185 rows and 8 variables:

- sch.id
An integer denoting the school identification number. There are 160 unique schools.

- math
Individual students' math score.

- size
The number of students in the school.

- sector
A dummy variable (integer) denoting whether the school is public (sector = 0) or catholic (sector = 1). There are 90 public schools and 70 catholic.

- meanses
A group-mean centered SES variable at the school level

- minority
A dummy variable indicating if the student was coded as white (minority = 0) or not (minority = 1).

- female
A dummy variable indicating if the student was coded as female (female = 1) or not (female = 0).

- ses
A student-level composite variable indicating the students' socio-economic status.

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