If a Researcher Obtains an R of

question 3

Multiple Choice

If a researcher obtains an r of .35, what would be the correct interpretation of r²?

• A) 35% of the variation is explained
• B) 45% of the variation is explained
• C) 12% of the variation is explained
• D) 80% of the variation is explained

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Definitions:

Controlled Studies

Research experiments that include a control group against which the outcomes of the experimental group are compared.

Meta-Analysis

A statistical technique for summarizing the results of multiple studies to arrive at a conclusion about a body of research.

Evidence-Based

Pertaining to an approach that emphasizes the practical application of the outcomes of rigorous research as the basis for decision-making or practice.

Adolescent Substance Abuse

The use of drugs, alcohol, or other substances by individuals in their teenage years, often leading to physical, mental, or social problems.