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Some Implications of the Revised Van Wagenen History Scales

by Marvin J. Van Wagenen - 1925

IN the construction of educational scales of the C score type—those indicating the difficulty of tasks that can be done with a correctness of fifty per cent—the process is based upon two fundamental assumptions. The assumption that school abilities are distributed among the pupils of a grade in accordance with the normal surface of frequency has long been accepted as a reasonable one. On the basis of it the evaluation of tasks for their difficulty values has been carried out in many school subjects. The Ayres Scale for Measuring Spelling Ability, the Briggs-Kelley list of spelling words, the Trabue Completion-Test Language Scales, the Woody Arithmetic Scales, and the author's original American History Scales are but a few examples among the many illustrations. It is also the basis of the T score method of scale making, of which the Thorndike-McCall Reading Scales and the Morrison-McCall Spelling Scales are illustrations.

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Cite This Article as: Teachers College Record Volume 27 Number 2, 1925, p. 142-142
https://www.tcrecord.org ID Number: 5948, Date Accessed: 9/29/2020 3:06:31 AM

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