Exam | R Documentation |
Exam scores from inner London
Description
Exam scores of 4,059 students from 65 schools in Inner London.
Usage
data(Exam)
Format
A data frame with 4059 observations on the following 9 variables.
- school
School ID - a factor.
- normexam
Normalized exam score.
- schgend
School gender - a factor. Levels are
mixed
,boys
, andgirls
.- schavg
School average of intake score.
- vr
Student level Verbal Reasoning (VR) score band at intake - a factor. Levels are
bottom 25%
,mid 50%
, andtop 25%
.- intake
Band of student's intake score - a factor. Levels are
bottom 25%
,mid 50%
andtop 25%
./- standLRT
Standardised LR test score.
- sex
Sex of the student - levels are
F
andM
.- type
School type - levels are
Mxd
andSngl
.- student
Student id (within school) - a factor
Source
http://www.bristol.ac.uk/cmm/learning/mmsoftware/data-rev.html
References
Goldstein, H., Rasbash, J., et al (1993). A multilevel analysis of school examination results. Oxford Review of Education 19: 425-433
Examples
str(Exam)
summary(Exam)
(fm1 <- lmer(normexam ~ standLRT + sex + schgend + (1|school), Exam))
(fm2 <- lmer(normexam ~ standLRT*sex + schgend + (1|school), Exam))
(fm3 <- lmer(normexam ~ standLRT*sex + schgend + (1|school), Exam))