Many Studies Use Random Assignment When Placing Research Participants into the Conditions

question 27

Essay

Many studies use random assignment when placing research participants into the conditions of an experiment.In fact,random assignment is considered an important element of experimental design.First,describe random assignment.Then,explain why it is important for an experimenter to use random assignment.

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Definitions:

Aggregate Demand Curve

A curve that shows the total quantity of all goods and services demanded across all levels of an economy at any given price level.

Real Output

The cumulative worth of all products and services manufactured within an economy, taking into account adjustments for changes in inflation.

Price Levels

A measure of the average prices of goods and services in the economy.

Aggregate Supply Curve

A graphical representation showing the relationship between the total supply of goods and services within an economy at different overall price levels.