If an Item-Discrimination Index Is Negative

question 92

Multiple Choice

If an item-discrimination index is negative

• A) high scorers are more likely to have answered the item correctly than low scorers.
• B) low scorers are more likely to have answered the item correctly than high scorers.
• C) the alternate form of the test is probably not equivalent.
• D) the computer scoring is in error because this index is not supposed to be negative.

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Definitions:

Availability

The degree to which a product or service can be purchased or accessed by consumers at a given time.

Consumer Tastes

Preferences and likings of consumers that influence their purchasing decisions and are shaped by cultural, social, and individual factors.

Close Substitutes

Products or services that can easily replace each other in the eyes of the consumer due to their similarities in function or utility.

Oligopoly

A market structure in which a few firms dominate, leading to limited competition and potentially higher prices and levels of cooperation.