Why Is a Longitudinal Design Considered a Within-Subjects Design

question 38

Multiple Choice

Why is a longitudinal design considered a within-subjects design?

• A) Participants are measured twice, once at the beginning of the study and once at the end of the study.
• B) Participants are repeatedly measured on the dependent variable over time.
• C) Participants are measured on the dependent variable after exposure to each level of the independent variable.
• D) Fewer research participants are needed for adequate statistical power.

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Definitions:

Utility Function

An equation that calculates the total utility a consumer gains from consuming a certain quantity of goods and services.

Indifference Curves

Graphical representations of all the combinations of goods and services that provide equal satisfaction to a consumer.

Income

The monetary return or earnings received by an individual or entity, often measured on a regular basis, such as monthly or annually.

Consumption Bundle

A combination of goods and services that a consumer chooses to consume given their budget constraints.