The Effect of a Treatment in a Simple Interrupted Time-Series

question 6

Multiple Choice

The effect of a treatment in a simple interrupted time-series design is best indicated by

• A) an increasing trend in the dependent variable that is present both before and after the treatment.
• B) a decreasing trend in the dependent variable that is present both before and after the treatment.
• C) a clear discontinuity (abrupt increase or decrease) in the dependent variable at the point the treatment is administered.
• D) a gradual change in the dependent variable that begins just as the treatment is implemented.

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Definitions:

Law Of Demand

The economic principle that, all else equal, an increase in the price of a good will decrease the quantity demanded, and conversely, a decrease in price will increase the quantity demanded.

Quantity

The amount or number of a material or immaterial entity that is measureable.

Equilibrium Price

The selling price where the amount of products offered is equal to the amount of products consumers want to buy.

Quantity Supplied

The amount of a good or service that producers are willing and able to sell at a particular price over a specified period.