An Introduction to the Theory of Mental and Social Measurements |
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75 percentile a-t Words A's marked ability absolute zero points Aobt approximately Atrue av.-obt Bobt boys calculated called cent central tendency cephalic index chance Clark Wissler coefficient of correlation constant error corresponding diff diphtheria died distance facts of Table finger length form of distribution formula FREQUENCY OF FORM given value gives 50 differences gives One 39.5 Ichabod Crane individual infer Karl Pearson limits mean square deviation mental and social mental measurements method mid-point multiple normal distribution NORMAL PROBABILITY INTEGRAL number of measures obtained measure percentage point of reference probability surface probable divergence problem quantity quency of Form random rank ratios rectangle related pairs Relative Frequen relative position result scale score skewed statistical steps subtract Suppose Surface of Fre surface of frequency tion trait T₁ true average true measure unimodal distribution units of amount UNLIKE-SIGNED PAIRS unreliability variable fact