Although It Is Possible to Obtain a Sample with Characteristics

question 40

Multiple Choice

Although it is possible to obtain a sample with characteristics that are very different from the population through random sampling, it is more likely that a nonrepresentative sample is the result of ____.

• A) simple random sampling
• B) selection bias
• C) stratified selection
• D) systematic selection

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Definitions:

Beta-Amyloid

A protein fragment snipped from an amyloid precursor protein that, in excessive amounts, can form plaques in the brain and is a hallmark of Alzheimer's disease.

Protein Tau

A protein associated with the stabilization of microtubules in nerve cells, whose abnormal accumulation is linked to neurodegenerative diseases like Alzheimer's.

Plaques

Deposits of fatty substances, cholesterol, cellular waste products, calcium, and fibrin in the inner lining of an artery.

Cognitive Reserves

The mind's resilience to withstand neurological damage due to aging or other factors, often linked to an individual's level of mental engagement and education.