I was most interested to read the paper by Eaves, et al. They have helped to remedy the defects of most earlier papers on the prognosis of "prematurity" by carefully distinguishing small-for-dates babies from true premature babies.

They found that Griffith's infant test scores correlated badly with test scores at 4 years. I would not expect them to have a high predictive value, apart from the effect of environmental variables in the intervening period, because several of the Griffiths tests have no bearing on intelligence, and the method does not allow one to take into consideration the factors which may have affected the score and which are unrelated to intelligence.

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