After Working for Several Hours at a Computer Terminal and Using

question 198

Multiple Choice

After working for several hours at a computer terminal and using the word processor to prepare a term paper, the fact that you no longer hear the hum of the computer's electrical system is a result of

• A) signal detection.
• B) minimum absolute thresholds.
• C) difference thresholds.
• D) sensory adaptation.

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Definitions:

Federal Personal Income Tax

A tax levied by the federal government of the United States on the income of individuals, including wages, salaries, and investment incomes.

Marginal Tax Rate

The rate at which an additional dollar of income is taxed, showing the percentage of tax applied to your next dollar of taxable income.

Average Tax Rate

Total tax paid divided by total taxable income or some other base (such as total income) against which to compare the amount of tax paid. Expressed as a percentage.

Progressive Tax

At the individual level, a tax whose average tax rate increases as the taxpayer’s income increases. At the national level, a tax for which the average tax rate (= tax revenue/GDP) rises with GDP.