Which of the Following Procedures Is an Example of the Use

question 80

Multiple Choice

Which of the following procedures is an example of the use of a placebo?

• A)In a test of the effects of a drug on memory,a participant is led to believe that a harmless pill actually contains an active drug.
• B)A participant in an experiment is led to believe that a pill,which actually contains an active drug,is harmless.
• C)Participants in an experiment are not told which treatment condition is in effect.
• D)Neither the participants nor the experimenter knows which treatment condition is in effect.

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Definitions:

Marginal Propensity

The portion of additional income that an individual is likely to spend on goods and services instead of saving.

Price Level

The average of current prices across the entire spectrum of goods and services produced in the economy, which can affect purchasing power and inflation.

Aggregate Expenditure Line

A graphical representation of the total spending in an economy, including consumption, investment, government, and net exports, at various levels of income.

Marginal Propensity

The proportion of an additional increment of income that is spent on consumption. It reflects the change in consumption resulting from a change in income.