A Researcher Studying Alcohol Usage at Colleges and Universities May

question 6

Multiple Choice

A researcher studying alcohol usage at colleges and universities may investigate and compare alcohol usage of young adults that attend a college or university against those who do not. This is an example of which type of quantitative study?

• A) Between-groups
• B) Random sampling
• C) Within-groups
• D) Random assignment

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Definitions:

Variance

The average of the squared differences from the Mean, a statistical measurement of the spread between numbers in a data set.

Computational Formula

A formula used to compute statistical measures that often simplifies the arithmetic process.

Variance

A measure of the dispersion or how spread out numbers are in a dataset.

Interquartile Range

A measure of statistical dispersion, representing the difference between the 25th and 75th percentiles of a dataset.