An Important Factor in the Increase in Life Expectancy in Low-Income

question 9

Multiple Choice

An important factor in the increase in life expectancy in low-income nations has been __________.

• A) ​improved medical technologies
• B) ​a safer water supply
• C) ​healthier diets
• D) ​increased exercise programs

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Definitions:

Reliability

The consistency and dependability of a measure or test over time, ensuring that similar results are achieved under consistent conditions.

Standard Deviation

A statistical measure of the dispersion or variation in a set of values, indicating how much individual data points differ from the mean value.

Construct Validity

The extent to which a test measures what it claims to measure, representing the accuracy of the construct being assessed.

Standardize

The process of making something conform to a standard, often to ensure consistency and comparability between different instances or measures.