The data were collected from 88 school children in Vermont. The variables are:
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AddSc – a composite variable for which higher scores indicate greater frequency
of symptoms associated with attention deficit disorder.
Gender – male (1) or female (2).
Repeat – repeated at least one grade (1) or never repeated a grade (0).
IQ – intelligence test score.
Engl – English class in 9th grade was college prep (1), general (2) or remedial
(3).
EngG – grade in that English class: A (4), B (3), C (2), D (1) or F (0).
GPA – grade point average in 9th grade.
SocProb – classified has having (1) or not having (0) social problems in the 9th
grade.
DropOut – dropped out of school before completing high school (1) or completed
high school (0).