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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    30. Frequency polygon and column diagram to represent distribution of abilities of 303 college students in visual imagery. ~. + 31. Comparison of “actual frequency” polygon with result of first and peconcd “amoomnings iw = 2 S ist eo 32. Distribution of 5714 marks givenin plane geometry. - + + 33. Polygons representing various expansions... 2 “Hrs 84. Graph of thelney=4¢@+8 . - © + © © @ 35. Distribution of measures in five groups under the normal curve . 36. Same, with different unit length anu base lime’ so). we als 37. “Normal” distribution of ‘‘errors” inaverages. - - 39. Same, plotted differently . . - « + + 240 40. Same, plotted for 130 collegestudents . - + + + > 241 41. Same, data plotted under assumption that all points are concen- trated at mean points of the class-intervals of the table . Q42 42. Data of Diagram 40, tabulated as in 41 , SPR es 43. A Galton diagram for representing correlation graphically . 246 44. Pairs of measurements plotted. . - + + + + «© + 248 45. To illustrate the first step in plotting a correlation table . 261 46. 'To illustrate the computation of the correlation and the regression coefficients for the case of linear regression 264 47, A product-moment diagram icig hig See ie ee oe 48, Relation between cost-per-student-recitation in English and the number of pupils instructed, in 148 Kansas high schools. . 277 49. Abstract from Table 43, to illustrate certain facts graphically . 280 50. Illustrating groups of measures set from type .- 295 Comparison of board of education budget with that approved by the city council. . . .- F levied, for a series of years operation and maintenance of schools of Grand Rapids are educating the children of school age in the city . the close of the school year. . ;