Taking a Broader Perspective: the Problem of External Validity an Experiment

question 39

Multiple Choice

Taking a Broader Perspective: The Problem of External Validity An experiment must be ____ to be externally valid.

• A)internally valid
• B)practically significant
• C)replicable
• D)internally valid and replicable

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Definitions:

Skeletal Muscle Fibers

Skeletal muscle fibers are long, cylindrical cells that constitute skeletal muscle, responsible for voluntary movements through contraction and are innervated by motor neurons.

Anaerobic Respiration

A form of respiration using electron acceptors other than oxygen, allowing cells to produce energy in the absence of oxygen.

Muscle Tone

The ongoing and involuntary slight tightening of muscles that aids in sustaining posture.

Constant Tension

A state wherein a muscle remains in a consistently contracted state, maintaining a steady force output without relaxation.