. Report of Committee on school inquiry, Board of estimate an apportionment, city of New York .. . thestandard scores, except in reasoning, would seem to be about standards are not meant to be goals that can be reached only by 500 EDUCATJOXAL INVESIIGATIOX unusual ability or extraordinary effort, but rather minimum and opti-mum scores. Table XXXVIII—Distribution of Scores on the Basis of Accuracy in Test 7 The score in accuracy is the per cent, the examples right are of those 75/0 means an accuracy of from 70% to yg/o inclusive. Classes Group No. IxGroup 100% 95% 85% 75%
. Report of Committee on school inquiry, Board of estimate an apportionment, city of New York .. . thestandard scores, except in reasoning, would seem to be about standards are not meant to be goals that can be reached only by 500 EDUCATJOXAL INVESIIGATIOX unusual ability or extraordinary effort, but rather minimum and opti-mum scores. Table XXXVIII—Distribution of Scores on the Basis of Accuracy in Test 7 The score in accuracy is the per cent, the examples right are of those 75/0 means an accuracy of from 70% to yg/o inclusive. Classes Group No. IxGroup 100% 95% 85% 75% 65% 55% 45% 35% 25% 15% 5% 0% 4127,171 2 5% 5% 2 5% 4% 2 20% 8 13 12% 15% 5 20% 9% 82% 8>o 1 2% 6% 1 ■5% 12% 2% Children ^ ll%ll4% 2% 5% JFrom Table XXV, page 467. Of the 41 individuals in the group of adults, 2 or 5% of the group had perfect scores, 5% also had scoreswhose accuracy was from 90% to 99%, 20% of the group were of 80 to 89% accuracy, and so on. In thetable is given also the corresponding figures for school children. The results are shown graphically in Fig. 7. fREQUCNCIES. 307„ 407o 50/o 607o 707oFig. XXXVIII PERFECT 9o7o ioo7o Comparison of distribution of scores for accuracy of work in Test 7 for twogroups, one of 41 employees at Wanamakers, the other of 27,171 New York schoolchildren in all grades from 4A through high school. Horizontal scale Shows accuracyof work. Vertical scale indicates the number in each .eroup, expressed as per cent,of total membership of the group, making each degree of accuracy. The part in whiteis common to both groups. The part in black is the excess of the employees overthe school children. The shaded part represents the school children that fall belowthe employees. Either the influence of commercial work, or the selective action of thestore, has eliminated the grossly inaccurate. The average accuracy of the group, 72per cent., is slightly better than that called for by the standard scores. COURTIS TESTS IX ARITHMETIC 501 Th
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