Which Are the Nonprobability Methods of Sampling

question 41

Multiple Choice

Which are the nonprobability methods of sampling?

• A) case-control and availability
• B) convenience, quota, and case-control
• C) availability, stratified, and quota
• D) cluster, convenience, and quota

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Definitions:

Threshold Stimulus

The minimum stimulus needed to cause a depolarization of the membrane and generate an action potential in excitable cells.

Muscle Fatigue

Muscle fatigue is the decline in ability of a muscle to generate force, often experienced after prolonged activity or strain.

Motor Units

A motor unit consists of a single motor neuron and all the muscle fibers it innervates, essential for muscle contraction.

All Or None

A principle stating that a neuron either fires with a full response or does not fire at all, depending on stimulus strength.