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:

FMLA leave

Refers to the Family and Medical Leave Act in the United States, allowing eligible employees to take unpaid, job-protected leave for specific family and medical reasons with continuation of group health insurance coverage.

Unpaid leave

Time off from work that an employee is allowed to take without pay, which can be for various reasons including medical leave, family emergencies, or personal time.

Religious discrimination

Unfair or unequal treatment of individuals or groups based on their religious beliefs or practices.

Prima facie case

Evidentiary standard that requires sufficient evidence to prove the case in the absence of any contradictory evidence.