CRANV2 Main test results chapter Cyril Cleverdon Michael Keen Cranfield An investigation supported by a grant to Aslib by the National Science Foundation. Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. - 156 - IOO 3O 2O Io o IO 20 FIGURE 4.717P IOO 9o A '°l 70 ' 60 -1 -1 ,< L) SO [OCRerr] 4o 30 2O 'oi o III X 4. 701T i O 4. 708T -f-4. 709T I ! 30 4.0 $O 60 70 80 90 IOO % PFECI$1ON SIMPLE CONCEPT INDEX LANGUAGES II. 2.a, H.9.a, and II.10.a(FIGURES 4.701T, 4.708T and 4. 709T) t- II X 4. 701T O 4. 711T 4- 4. 712T A 4. 713T I Io 20 FIGURE 4.718P 30 40 50 60 % PP, ECISION 70 80 90 I00 SIMPLE CONCEPT INDEX LANGUAGES II.2.a, II.12.a, II,13.a and II.14.a(FIGURES 4.701T, 4,711T, 4.712T and 4.713T)