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The Concepts of Over-and Under-Achievement

reviewed by Julian C. Stanley & Gene Glass - 1964

coverTitle: The Concepts of Over-and Under-Achievement
Author(s): R. L. Thorndike
Publisher: John Wiley, New York
ISBN: , Pages: , Year:
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In his characteristically clear, insightful way Professor Thorndike treats the titled topic and related matters of importance to educational researchers. He addresses the educational researcher who has had at least one course, and preferably two, in applied statistics, with emphasis on correlation and reliability. Others will find much of his prose intelligible but may not understand the statistical portions. Thorndike shows that the typical studies of over- and underachievement (or, what is essentially the same, of under- and over-predictedness) are marred by methodological ineptness, especially the failure to recognize regression toward the mean due to errors of measurement for what it is: Those persons who score high on a test relative to others tested with them tend to score too high because of positive errors of measurement, and those who score low tend to score too low because of negative errors of measurement. Upon retest with a comparable form of the... (preview truncated at 150 words.)

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Cite This Article as: Teachers College Record Volume 66 Number 3, 1964, p. 282-282
https://www.tcrecord.org ID Number: 2610, Date Accessed: 9/19/2020 6:45:57 PM

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