A College Professor in a Childhood Disorders Class Gives Extra

question 68

Multiple Choice

A college professor in a childhood disorders class gives extra credit on the basis of who answers questions correctly on an 80s-music quiz at the start of the class.Which of the following is likely NOT true of this approach?

• A) This approach has low content validity because 80s music is not relevant to childhood disorders.
• B) This approach would likely have low convergent validity with exam scores in childhood disorders.
• C) This approach would likely have low predictive validity of future exam scores in childhood disorders.
• D) This approach would likely have low test-retest reliability because multiple students might give different answers to the same question.

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Definitions:

Antitrust Division

A government division responsible for enforcing laws to promote competition and prevent monopolies and other activities that restrain trade.

Moderately Concentrated

Describes an industry structure where a few firms occupy a significant portion of the market share but not to the extent of creating a monopoly or oligopoly.

Pure Monopoly

An industry with a single firm that produces a product for which there are no close substitutes and in which significant barriers to entry prevent other firms from entering the industry to compete for profits.

HHI

The Herfindahl-Hirschman Index, a measure of market concentration used to determine the level of competition within an industry.