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Method of Extreme Groups - Discrimination indices in SPSS
Автор: Dr David Reilly
Загружено: 2019-08-24
Просмотров: 3242
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This demonstrates the method of extreme groups, used to compare the bottom 25% and top 25% of scorers to determine discrimination indices. The larger the value, the more discriminating the item.
This is the one time in life where discrimination is good, because you don't want all respondents answering identically.
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