The Central Role of General Ability in Prediction.

  title={The Central Role of General Ability in Prediction.},
  author={R L Thorndike},
  journal={Multivariate behavioral research},
  volume={20 3},
Three data sets are analyzed that permit double cross-validation of a test battery against criterion variables in a number of educational programs or jobs. The validity of the first general factor score is compared with that obtained from the set of cross-validated regression weights, and is found to account, respectively, for approximately 85, 90 and 120 percent as much criterion variance as the cross-validated regression weights. Small further contributions appear to be made by a mechanical… CONTINUE READING

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