I therefore draw no conclusions from the comparative size of these partials, nor do I get partials with any of the other data, and rest the case mainly on the high _r_’s between IQ and SQ’s in 1920; increase in correspondence of the central tendencies and range of the SQ’s by grade with the central tendency and range of the IQ’s of the same data; small intercorrelation of SR’s and negative correlation of AccR with IQ. The general lowness of the partials (Table 6) does, however, indicate the great causative relation between IQ and disparity of product. The elements still in here are common elements in the tests and the mistreatment of intelligence. TABLE 6 PARTIAL CORRELATIONS OF QUOTIENTS IRRESPECTIVE OF INTELLIGENCE QUOTIENTS _N_ = 81 Arithmetic Vocabulary Reading Quotient Quotient Quotient Vocabulary Quotient .04 ±.07 Reading Quotient .31 .28 ±.07 ±.07 Completion Quotient .43 .44 .47 ±.08 ±.06 ±.06 What happened by grade in 1918-1919 is summarized in Table 7. What happened by grade in 1919-1920 is summarized in Table 8. Since there were many changes in personnel from 1918-1919 to 1919-1920, we need expect no continuity from Table 7 to Table 8. For the continuous influence of the two years, see Table 3, which includes 48 children taking all tests at all periods. TABLE 7 ALL CORRELATIONS, MEANS, AND STANDARD DEVIATIONS BY GRADE, SHOWING PROGRESS FROM NOVEMBER, 1918 TO JUNE, 1919 I stands for Intelligence Quotient V stands for Vocabulary Quotient R stands for Reading Quotient C stands for Completion Quotient GRADE _r_ M S.D. Nov. June Nov. June Nov. June I V .467 .633 I 109.89 113.20 I 12.83 15.49 ±.12 ±.07 ±1.98 ±1.91 ±1.40 ±1.35 III I R .541 .492 V 96.11 109.90 V 21.21 18.69 ±.11 ±.09 ±3.28 ±2.30 ±2.32 ±1.63 I C .641 .386 R 82.26 101.40 R 22.58 15.85 ±.09 ±.11 ±3.49 ±1.95 ±2.47 ±1.38 C 86.89 108.40 C 22.76 15.79 ±3.52 ±1.94 ±2.49 ±1.37 _N_ = 19 30 ----------------------------------------------------------------- I V .724 .819 I 105.90 104.82 I 18.08 18.21 ±.07 ±.05 ±2.73 ±2.98 ±1.93 ±2.11 IV I R .665 .845 V 97.20 108.53 V 17.26 24.92 ±.08 ±.05 ±2.60 ±4.08 ±1.84 ±2.88 I C .596 .717 R 91.06 107.82 R 27.85 10.35 ±.10 ±.08 ±4.20 ±1.69 ±2.97 ±1.20