An Item-Characteristic Curve

question 32

Multiple Choice

An item-characteristic curve

• A) is the single best index of guessing a test user has.
• B) plots the reliability and the validity of the item.
• C) Both a and b
• D) None of these

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Definitions:

ATC

Average Total Cost; the total cost per unit of output incurred when producing goods or services.

AVC

Average Variable Cost, the cost that varies with the level of output, divided by the quantity of output produced.

Total Fixed Cost

The sum of all costs that do not change with the level of output produced; these costs are incurred even if production is zero.