Which of the Following Are Accurate Statements About Study Variables

question 33

Multiple Choice

Which of the following are accurate statements about study variables and research concepts? Select all that apply.

• A) Variables are qualities,properties,or characteristics of persons,things,or situations that do not change or vary.
• B) Research concepts are usually studied in quantitative research,are at lower levels of abstraction than variables,and are not measured or manipulated.
• C) Some variables are manipulated; others are controlled.
• D) A dependent variable is the outcome that the researcher wants to predict or explain.
• E) Operational definitions provide the theoretical meaning of a variable and are derived from a theorist's definition of a related concept.

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Definitions:

Standard Deviation

A measure of dispersion or variability that quantifies how much individual data points deviate from the mean of a dataset.

Normally Distributed

Referring to a bell-shaped curve distribution where data are symmetrically distributed around the mean, implying most data points are close to the mean and fewer are near the extremes.

Automobile Battery

A rechargeable battery that supplies electrical energy to a motor vehicle, primarily used for starting the engine and powering accessories.

Normally Distributed

An evenly shaped probability distribution focused on the mean, which shows that outcomes near the average are more likely than those that are far away.