Data are a subset from an observational, longitudinal, study on
adopted children. Is child's intelligence related to intelligence of
the biological mother and the intelligence of the adoptive mother?
Usage
ex1605
Arguments
Format
A data frame with 62 observations on the following 6 variables.
AMED
adoptive mother's years of education
BMIQ
biological mother's score on IQ test
Age2IQ
IQ of child at age 2
Age4IQ
IQ of child at age 4
Age8IQ
IQ of child at age 8
Age13IQ
IQ of child at age 13
References
Skodak, M. and Skeels, H.M. (1949). A Final Follow-up Study of One
Hundred Adopted Children, Journal of Genetic Psychology75: 85--125.