A Researcher Studies a New Mathematics Program

question 20

Multiple Choice

A researcher studies a new mathematics program. At the beginning of the year, 100 students are randomly assigned to receive a new program and 100 students are randomly assigned to use the previously used mathematics program. The participants are pretested at the beginning of the year, and they are posttested at the end. What kind of experimental design did the researcher use?

• A) Pretest-posttest control-group design
• B) Posttest-only design with nonequivalent groups
• C) One-group posttest-only design
• D) Posttest-only control-group design

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Definitions:

Money Wage Rate

The money wage rate refers to the nominal amount of money that employees receive in exchange for their labor, typically reported as an hourly or yearly salary.

Substitution Effect

The change in the consumption pattern of goods due to a change in relative prices, holding the level of utility constant.

Output Effect

The change in total output resulting from a change in input quantities or the introduction of new processes or technologies in the production.

Price of Capital

The cost of using capital goods, such as equipment or buildings, which is often reflected in interest rates or rental charges.