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:

Element

A substance that cannot be changed to a simpler substance by a normal chemical reaction.

Neutrons

Subatomic particles without an electric charge, found in the nucleus of an atom, contributing to the atom's mass.

Electrons

subatomic particles with a negative charge, found in all atoms and acting as the primary carrier of electricity in solids.

Valence Shells

The outermost electron shell of an atom that determines its bonding behavior with other atoms.