ex1605 | R Documentation |
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?
ex1605
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
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Skodak, M. and Skeels, H.M. (1949). A Final Follow-up Study of One Hundred Adopted Children, Journal of Genetic Psychology 75: 85–125.
ex1319
str(ex1605)
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