Which Characteristic Is Necessary for an Extraneous Variable to Become

question 29

Multiple Choice

Which characteristic is necessary for an extraneous variable to become a confounding variable?

• A) It must change systematically from one participant to the next.
• B) It must change systematically when the independent variable is changed.
• C) It must have no systematic relationship with the dependent variable.
• D) It must have no systematic relationship to the independent or dependent variables.

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