A Threat to Internal Validity Occurs Only If a Potential

question 21

Multiple Choice

A threat to internal validity occurs only if a potential design confound varies with the independent variable.

• A)haphazardly
• B)systematically
• C)spontaneously
• D)especially

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Definitions:

Coccygeus

A small muscle located in the pelvic area, part of the pelvic floor, playing a role in supporting the coccyx (tailbone) and controlling movements of the pelvic area.

Rhomboid Major

A muscle in the upper back that helps control the shoulders' movement.

Trapezius

A large triangular muscle extending over the back of the neck and shoulders, responsible for moving the head and shoulder blade.

Extraocular Muscle

One of the muscles located outside the eyeball that controls eye movements.