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Will increasing the number of criteria on a measure result in changes in the mean and standard deviation? A study of peer and self-assessment of student presentations was conducted using five criteria and twenty-five expanded to criterion measures

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Will increasing the number of criteria on a measure result in changes in the mean and standard deviation?

A study of peer and self-assessment of student presentations was conducted using five criteria and twenty-five expanded to criterion measures. The additional twenty items were written to address more specific criteria. What changes would you expect to find in the mean and standard deviations? Locate the PDF version of this report in the Education database of ContentSelect (item # 12511352) and look at Table 1 to find out.