Eric Wants to Verify That Automatic Toothbrushes Work Better Than

question 41

Multiple Choice

Eric wants to verify that automatic toothbrushes work better than manual toothbrushes. To test this, he randomly assigns 25 participants to use a Sonicare toothbrush and 25 people to use a manual toothbrush. At the end of the study period he has a dentist inspect each participants' teeth. In his study, the _____ would be considered the independent variable, whereas the _____ would be considered the dependent variable.

• A) type of toothbrush; number of cavities
• B) manual toothbrush; automatic toothbrush
• C) automatic toothbrush; manual toothbrush
• D) number of cavities; type of toothbrush

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Definitions:

Coping Skills

Techniques or strategies employed by individuals to deal effectively with stress, problems, and challenging situations.

Naturally Occurring Consequences

The automatic outcomes that happen as a direct result of someone's actions without external intervention.

Environmental Consequences

The impact or outcomes that actions or policies have on the natural environment, including changes to ecosystems, biodiversity, and climate.

Friendship Patterns

The recurring structures and dynamics observed in how individuals form and maintain friendships.