. Spelling ability, its measurement and distribution. Oo t^ yfi^ —r—rr ..<.. .. ^ O. Figs. 37-42. Derived Forms of Distribution. Grades 3 to 8. loo spelling Ability—Its Measurement and Distribution value differs for each of the six tables. In order therefore toemploy a unit which should be the same for all, including thenormal distribution, we have retained the of the Proba-bility Integral. It is now no longer a function of the modified dis-tributions, but a mere unit of length. Likewise in order tohave a common point of reference the median of the normaldistribution has been retained,
. Spelling ability, its measurement and distribution. Oo t^ yfi^ —r—rr ..<.. .. ^ O. Figs. 37-42. Derived Forms of Distribution. Grades 3 to 8. loo spelling Ability—Its Measurement and Distribution value differs for each of the six tables. In order therefore toemploy a unit which should be the same for all, including thenormal distribution, we have retained the of the Proba-bility Integral. It is now no longer a function of the modified dis-tributions, but a mere unit of length. Likewise in order tohave a common point of reference the median of the normaldistribution has been retained, the terms low and high inthe tables referring to parts below or above that point. Thereal median of each modified distribution, however, is given,being expressed as a deviation from the old median. Figs. 37 to 42 are to be considered in connection with tablesXXXVI to XLI, of which they are the graphic expressions (thecurves being smoothed, to represent an indefinite number ofcases). They are also to be considered in connection with Figs. 31to 36, from the retention parts of which
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