Srcdfull {mmlcr}R Documentation

Longitudinal Dataset of Aggression and Reading Ability in Children.

Description

The Srcdfull data frame has 1620 rows and 9 columns. It is a longitudinal dataset from 405 children with scores for aggression and reading ability.

Usage

data(Srcdfull)

Format

This data frame contains the following columns:

id
Subject id.
sex
A factor variable with the sex of each subject.
age
Age of subject at time of interview.
anti
Antisocial score, an integer from 0 to 12.
read
Reading ability score, ranging from 0 to 8.4.
momage
Mother's age at first interview.
kidage
Subject's age at first interview.
homecog
An integer score, ranging from 0 to 14, at the first interview for cognitive stimulation at home.
homeemo
An integer score, ranging from 0 to 14, at the first interview for emotional support at home.

Details

The sample consists of N=405 children drawn from the Children of the National Longitudinal Survey of Youth, about half of whom are missing one or more of the repeated measures on aggression or reading ability. The measures of interest include four repeated measures of aggressive behavior taken at two-year intervals, four repeat measures of reading achievement taken at two-year intervals, initial interview measures of cognitive stimulation and social support of the child in the home, and background measures of child gender, child age, and mother age.

Source

http://www.unc.edu/~curran/srcd-docs/srcddata.txt

References

http://www.unc.edu/~curran/srcd-docs/srcdmeth.pdf

Examples

data(Srcdfull)
Srcdfull.mmlcr4 <- mmlcr(outer = ~1 | id, components = list(
    list(formula = anti ~ poly(age, 2), min = 0, max = 12, 
    class = "cnormlong"), 
    list(formula = read ~ poly(age, 2), class = "normlong")), 
    data = Srcdfull, n.groups = 4)

[Package mmlcr version 1.3.5 Index]