MACRO-DEMOGRAPHICAL ANALYSIS OF THE GREAT MIGRATION. THE
The modern man inhabits all of the regions of the planet since 13 millennia ago at least. According to the Out of Africa Model, the man used about of 87,000 years in completing this process, and did it without interbreeding with the man’s another descendants. However, the demographic evolution of the human societies during the Pleistocene would be able to contradict this hypothesis.
EDITOR—I agree with Treasure and MacRae that the greatest determinant of the power of a study is its design.1 Minimisation improves power by comparing similar groups but there is a similar technique—randomised block design—which has even more power.2 ::: ::: In …