When You Are Interrogating the External Validity of a Sample

question 36

Multiple Choice

When you are interrogating the external validity of a sample, which is the most important question to ask?

• A)How many people are in the sample?
• B)How was the sample collected?
• C)How were the participants measured?
• D)How many people are in the population?

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Definitions:

Oil Quality

A measure of the chemical and physical properties of oil, determining its suitability for specific uses.

Predicted Values

The outcomes forecasted by a statistical model based on a set of input variables.

Outliers

Observations in data that are significantly different from the majority, potentially indicating measurement errors or novel phenomena.

Game Winnings

The total monetary or point-based rewards earned from winning games or competitions.