Bulletin, Edições 47-48The Council, 1930 |
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ability accuracy of prediction activity actuarial adjustment score applied approximation arithmetic mean associated attributes average behavior characteristics child combination configuration considered correlation ratio determine diagonal matrix discussion distribution effect environmental equation errors of prediction estimate example experimental factor analysis field formulation foster children foster homes fraternals function given heredity heredity and environment homoscedastic important indicated intelligence internal consistency interview investigator large number least squares linear marriage mathematical matrix mean ment mental method multiple correlation number of variables nursery school obtained orphanage pairs parents parole personnel persons placement points population possible predicting success prediction problem prediction score predictive factors predictive variables probably procedure projects Psychology quantitative variates questionnaire random rater ratings relatively reliability selection siblings situation social standard deviation standard errors standard scores statistical Study B-1 subcategories Supplementary Study techniques tion traits variance vector vocational zero