What Can We Learn from the Study of Twins?: An Evaluation of the Equal Environments Assumption
Author(s): Jacob Felson (Author), Alan Booth (Foreword)
Publisher: Edwin Mellen Pr
Edition: 1st
Language: English
Print length: 139 pages
ISBN-10: 0773429077
ISBN-13: 9780773429079
Book Description
The book argues that the empirical support for the validity of the EEA (Equal Environments Assumption) is not as strong as some behavior geneticists have claimed. The study re-analyzes some of the data on which ritually cited research is based to expose some of the flaws in the research.
What Can We Learn from the Study of Twins?: An Evaluation of the Equal Environments Assumption
Author(s): Jacob Felson (Author)
Publisher: The Edwin Mellen Press
Publication Date: January 1, 2012
ISBN-10: 077990611X
ISBN-13: 9780779906116
Book Description
Most evidence about genetic behavior comes from twin studies. The presumption is that this enables an equal environment assumption (EEA). This book argues that the validity of the EEA argument is not as strong as some behavior geneticists have claimed. Felson conducts the most comprehensive evaluation of the EEA to date. His analysis incorporates a larger more diverse set of outcome variables than any previous research on the subject. He generates estimates of genetic influence with and without controls for environmental similarity. This shows the extent of EEA violation in a straightforward manner. The findings are not easily categorized as supporting or undermining EEA. This is the most comprehensive analysis of the EEA argument to date. It discusses twin studies that date back to the 1930’s up until the current research of today.
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