Statistical methods applied to education : a textbook for students of education in the quantitative study of school problems / by Harold O. Rugg.

  • Harold Rugg
Date:
[1917?]
Catalogue details

Licence: In copyright

Credit: Statistical methods applied to education : a textbook for students of education in the quantitative study of school problems / by Harold O. Rugg. Source: Wellcome Collection.

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    the increased accuracy is obtained at the expense of speed. The eighth-grade scores are lower than those of the seventh grade, and none of the scores reach the normal fifth-grade level. Curves of this character are evidences of lack of supervision, of poor, inef- fective teaching, and are far too common in country schools. Curve B, on the other hand, indicates good quality of work and steady progress. Note that the curve lies wholly above the normalk Addition Diagnostic Curve of Median Development in Speed and Accuracy. Grades 4 to 8 inclusive June 1916, Speed Number of Examples Attempted 2 4 b 6 7 8: 9 1057-0 12 pe] 14 15 16 eouracy vttiit it 100 Any ¢lass whose position falls on this side of the curve is high in accuracy. Do not nogiect speed. Ratio of Examples Right to Examples Attempted QQ o leg ‘N 3 Veytp ates ny class whose position falls on this side of the curve is Work to increase accuracy. 80 Positions to the right (or left ) of a grade number in the median curve indicate greater ( low in accuracy. or less ) speed than the median speed for thatgrade, Dracram 4. Courtis’s Diagnostic CURVE FOR ARITHMETIC (S. A. Courtis, 1917.) curve, and that each grade circle shows not only greater accuracy than normal, but greater speed as well. Note also that the largest growth occurs between the fifth and sixth grades, the second largest between the seventh and eighth grades. The curves of the schools doing the best work tend, in similar fashion, to approximate the 80% line in addition, although few attain to as high speed levels as those shown in curve B. 3. Studies of failures in the public schools One of the most important types of administrative study that can be made of a school system is a study of the failures of its pupils in the different grades and different subjects. Somewhat recently these problems of non-promotion have