On a Test of Academic Ability,most Students Get Consistent Scores

question 42

Multiple Choice

On a test of academic ability,most students get consistent scores from test to retest,but their scores do not predict their school performance.What can we say about the reliability and validity of the test?

• A)The reliability and validity are both high.
• B)The reliability is low but the validity is high.
• C)The reliability is high but the validity is low.
• D)The reliability is high but the validity is unknown.

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Definitions:

Average Product

The output produced per unit of input, calculated by dividing total production by the number of input units.

Marginal Product

The additional output resulting from using one more unit of a particular input while holding all other inputs constant.

Accounting Profits

The difference between total revenue and explicit costs, representing the net income shown on a company's financial statements.