In an Ex Post Facto Study Researchers ____________, and in an Experimental

question 45

Multiple Choice

In an ex post facto study researchers ____________, and in an experimental study researchers __________.

• A) choose participants according to preexisting characteristics . . . . . manipulate conditions to produce differences
• B) assign participants to groups randomly . . . . assign participants to groups according to some personal characteristics of participants
• C) use more than one independent variable . . . . use one independent variable with two or more levels
• D) conduct a survey . . . . conduct a correlation

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Definitions:

Performance Risk

The potential for a purchased product or service to fail to meet expected performance levels, causing the buyer dissatisfaction.

Gas Mileage

A measurement of how many miles a vehicle can travel on a gallon of fuel, indicating its fuel efficiency.

Hybrid Car

A vehicle that uses a combination of an internal combustion engine and one or more electric motors for propulsion, aiming to reduce fuel consumption and emissions.

Conversion Rate

A metric used in marketing to measure the percentage of users who take a desired action, such as making a purchase or signing up for a newsletter.