12 48 66.5 18.5 41 69.6 28.6 -10.1 2 40.9 47.9 7 52.3 65.5 13.2 -6.2 14 56 66 10 81.9 98 16.1 -6.1 28 71.3 78.5 7.2 74.2 85.8 11.6 -4.4 8 60.8 69.2 8.4 45.4 57.9 12.5 -4.1 16 56 60.3 3.7 51.2 55 3.8 -.1 11 47.8 55 7.2 41.6 47 5.4 1.8 7 39.9 45.8 5.9 38.4 42.1 3.7 2.2 10 48.9 56.7 7.8 47.1 51.8 4.7 3.1 1 50.4 63.5 13.1 53.5 62.8 9.3 3.8 4 51.1 60.2 9.1 49.4 54.2 4.8 4.3 21 70.7 85.5 14.8 62.4 69.2 6.8 8 13 90 112 22 74.7 88 13.3 8.7 19 90 108 18 52.4 59 6.6 11.4 3 55 67.5 12.5 61.5 57.8 -3.7 16.2 Av. 58.45 69.50 11.01 55.13 63.58 9.11 1.9 M 9.1 6.8 2.2 75%ile 13.52 12.67 5.22 25%ile 7.15 4.47 -4.07 Q 3.18 4.1 4.65 P. E. (distribution) 3.81 4.19 6.1 P. E. (average) +-1.00 +-1.07 +-1.46 Av. = 1.30 P. E. M. = 1.51 P. E. 6 months 12 months Average of gains in test group in excess of control 1.37 1.9 Median 1.2 2.2 P. E. of difference +-.48 +-1.46 Average in terms of P. E. 2.85 1.30 Median in terms of P. E. 2.80 1.51 After a twelve months' interval, therefore, the actual average and median gains are slightly larger than after the first six months, but the variability is very much greater. Therefore, when expressed in terms of P. E., the gains are smaller. One of the test group cases (No. 13) who had gained 8 pounds after six months, gained 14 pounds in the second period of six months, making a total gain of 22 pounds. This gain is exceeded, however, by one in the control group (No. 12) who gained 3.5 pounds in six months, and 25.1 pounds more in the ensuing five months. This is certainly an enormous gain for five months, under any circumstances. Turning to Table XIV we find no corresponding gain in I.Q. for this child. Indeed there is a loss of five points.