School factors are not important: evidence from classroom separation studies

People commonly ascribe large effects to having this or that teacher, or this or that classmate. They usually cite some anecdotes from their personal lives for this, but large sample…

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Regression towards genetic set point: the case of MZ and DZ height in infancy/early childhood

Wilson, R. S. (1976). Concordance in physical growth for monozygotic and dizygotic twins. Annals of Human Biology, 3(1), 1-10. Heights and weights were analysed for 636 twins who had been…

Continue ReadingRegression towards genetic set point: the case of MZ and DZ height in infancy/early childhood