If an item is administered to 100 individuals has a difficulty index of 0.20, this item has a variance of suggests that the item regroups the individuals into two groups: a group composed of (b) not having This (a) people having correctly responded to the item in question and another group of correctly responded to the item. (c)_ people

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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If an item is administered to 100 individuals has a difficulty index of 0.20, this item has a variance of
(a)_. This suggests that the item regroups the individuals into two groups: a group composed of_(b)
people having correctly responded to the item in question and another group of (c)_people_ not having
correctly responded to the item.
Transcribed Image Text:If an item is administered to 100 individuals has a difficulty index of 0.20, this item has a variance of (a)_. This suggests that the item regroups the individuals into two groups: a group composed of_(b) people having correctly responded to the item in question and another group of (c)_people_ not having correctly responded to the item.
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