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ERIC Number: ED149482
Record Type: RIE
Publication Date: 1978-Feb
Pages: 8
Abstractor: N/A
Measures of Disparity. A Note.
Rosthal, Richard A.
Four measures of disparity were used to compute changes in the distribution of education dollars for each of the 50 states between 1970 and 1975. Three of the measures have been used by analysts and have known statistical properties, and the fourth is a less formal measure that has been embodied in a federal regulation. These measures include 1) the coefficient of deviation, 2) the coefficient of variation, 3) the Gini index, and 4) the 95:5 ratio. To test the expectation that the results obtained from the four measures would differ, all four measures were calculated for identical data bases--the distribution of state and local shares of current operating expenditures for 1970 and 1975, using data produced by the National Center for Education Statistics. The degree of similarity can be assessed by calculating the correlation coefficients between each pair of measures. The three statistical measures are virtually identical in result, with correlations ranging from .94 to .98. Even the 95:5 ratio has a high correlation with statistical measures. (Author/JG)
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Note: Tables on pages 7 and 8 may be marginally legible due to small print ; The report was prepared by Killalea Associates, Inc.