If We Have a Test Called "X" and R_xx =

question 63

Multiple Choice

If we have a test called "x" and r_xx = .80, this means

• A)80% of the differences in test scores is due to error and only 20% is due to true variance.
• B)20% of the test scores were used to obtain the reliability estimate.
• C)20% of the differences in test scores is due to error and 80% is due to true variance.
• D)the test average is in the low 'B' range.

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Definitions:

Real GDP

Gross Domestic Product adjusted for inflation, providing a more accurate depiction of an economy's size and how it's growing over time.

Aggregate Demand

The total demand for all goods and services in an economy at a given overall price level and in a given time period.

Keynesians

Economists who follow the theories of John Maynard Keynes, emphasizing the need for government intervention to manage economic cycles.

Supply-Siders

Economics theorists who believe that reducing tax rates and deregulation can stimulate economic growth by increasing supply.