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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

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The Effect on Mathematics Achievement of Programed Tutoring as a Method of Individualized, One-to-One Instruction.
Peer reviewed Peer reviewed
Ronshausen, Nina L. – Journal of Experimental Education, 1979
The effect of programed tutoring in mathematics on achievement of kindergarten and first-grade children was investigated. Significant differences favoring the Programed Math Tutorial groups were found in all three field studies. (Author/MH)
Descriptors: Discovery Learning, Elementary School Mathematics, Grade 1, Individualized Programs
Chi-Square Tests of Association and Goodness of Fit from Proportions and Percentages.
Peer reviewed Peer reviewed
Hopkins, Kenneth D. – Journal of Experimental Education, 1979
Formulas are derived for computing the chi-square statistic from proportions or percentages, both for tests of goodness of fit and association. Advantages of the new formulas are given, as are some examples. (Author/MH)
Descriptors: Expectancy Tables, Goodness of Fit, Mathematical Formulas, Percentage