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Archive | Twin Studies
Dr. Jensen's detractors only strengthened his theories.
A review of David Lyyken's "The Antisocial Personalities."
Critical review of a book on the current state of the scientific study of race.
The overall heritability of self-discipline is 60 percent.
The Washington Post shamelessly distorts scientific findings.
Seventy-five percent of variation in IQ is attributable to genes.
Another study shows intelligence is "largely determined by certain genetic factors."
Book grapples with the political inconveniences of genetics.
A philosopher’s elegant and compelling dissection of the race problem.
Scientific data show that the races differ in intelligence — dogma holds otherwise.
How quickly could the racial gap have evolved?
Rare mutations contribute to individual differences in personality and IQ.
"[I]gnorance and denial are no longer an option."
Behavioral genetics gives the lie to blank slate fantasy.
10 percent of the variation in academic achievement can now be explained by genes.
Some have even called for an end to twin-studies related to crime.
Cap: As usual, liberals are afraid of the truth.
Advanced techniques for improving our species.
Study of 12,500 twins finds academic performance is between 54 and 65 percent heritable.
Criminal behavior has a heritability of 39 to 56 percent in men.
Researchers critique one criticism of twins studies.
Study confirms genes account for "most of the differences" in learning ability.
So is adult aggression.
Skeptics of previous studies were probably genetically-predisposed to emphasize environment.
The New York Times discovers twin studies.
The definitive account of the Minnesota twin study.
A century of genetic deterioration.
Article from 1993 describes then-emerging studies on genetics' role in personality.
If this is true, genes are even more powerful than we thought.
Phil Rushton sets the record straight.
Genetic Similarity Theory explains the conflicts that baffle statesmen.
Genes determine brain's processing speed more than "was previously though."
Identical twins more likely to agree than fraternal twins.
Sisters did not meet until they were adults, yet are very much alike.
It’s time to prepare for the possibility that equality of intelligence is not true.
Black and white fraternal twins born to mixed race mother and white father.
Recent research shows black-white intelligence differences 80 percent genetic.
People get along better the more genes they have in common, says J. P. Rushton.