Types of Variables in Statistical Research

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What is the primary purpose of identifying the type of variables in a statistical research study?

To determine the appropriate statistical tests to use

Which of the following is NOT a type of quantitative variable?

Binary

If a variable represents categories that can be ordered in a meaningful way, what type of variable is it?

Ordinal

Which of the following is a true statement about quantitative variables?

<p>The numbers represent real amounts that can be added, subtracted, divided, etc.</p> Signup and view all the answers

If a variable can be used as both a quantitative and categorical variable, what type of variable is it?

<p>Ordinal</p> Signup and view all the answers

Which type of variable is the average star rating on product reviews?

<p>Continuous</p> Signup and view all the answers

In the example experiment, which variable is the independent variable?

<p>Salt addition</p> Signup and view all the answers

Which type of variable cannot be classified as independent or dependent in the example experiment?

<p>Time</p> Signup and view all the answers

In correlational research, what are the terms used to describe the two variables being examined?

<p>Predictor and outcome</p> Signup and view all the answers

What is the purpose of controlling variables in an experiment?

<p>To focus on the experimental treatment</p> Signup and view all the answers

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