An Item-Discrimination Index Typically Compares

question 177

Multiple Choice

An item-discrimination index typically compares

• A) high scorers' performances with low scorers' performances on a particular item.
• B) medium scorers' performances with low and high scorers' performances on a particular item.
• C) low scorers' performances with lower scorers' performances on a particular item.
• D) one group of scorers' performances on the item with any other groups of scorers' performances on the same item.

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Definitions:

Stability

The resistance of a chemical compound to change in its chemical structure or composition under specific conditions.

Descriptive Term

A word or phrase that describes or characterizes an object, situation, or concept without expressing its inherent nature.

Diene

Organic compounds that contain two double bonds, often involved in polymer production and synthetic rubber manufacture.

Solvolysis

The breakdown of a chemical compound by reaction with a solvent.