A Study of American Intelligence

alpha and beta alpha scores ALPHA TEST Alpine and Mediterranean Alpine race Analysis army tests Austria average intelligence average score Belgium Beta test Black-board chart born white draft Canada cent chart for demonstrating combined scale correlation countries Number Denmark Difference unreliable Distribution of scores England English speaking Nordic estimates examination alpha examination beta fact factor following beta foreign born white Germany given in Table grade Greece Holland immigrants coming increase individual examination intellectual intelligence scores Ireland Italy measure Mediterranean and Alpine Mediterranean race Memoir XV mental age method native born white nativity group negro draft non-English speaking Nordic Nordic race Norway opposite Poland population probable error proportion psychological racial reliability represents residence groups Russia Scotland shown in Figure shows speaking Nordic group special experimental group Standard deviation Stanford-Binet scale superior Sweden test in alpha tion total immigration TOTAL WHITE DRAFT true..false Turkey white officers zero scores