Clara Examines the Number of Traumatic Head Injuries That Occurred

question 27

Multiple Choice

Clara examines the number of traumatic head injuries that occurred in California for five years before and after the passage of a law that made it mandatory for riders to wear a helmet. Clara's research design would be classified as a(n) :

• A)nonequivalent control group pretest-posttest design.
• B)nonequivalent control group design.
• C)control series design.
• D)interrupted time series design.

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Definitions:

Withdrawal Reactions

Physical or emotional symptoms that occur after reducing or ceasing intake of a substance that was used regularly.

Non-Hispanic White

A demographic group defined by the United States Census Bureau as people living in the United States who are of European descent and who do not identify as Hispanic or Latino.

Substance-Free Dorms

On-campus residential arrangements that prohibit the possession and use of alcohol, illicit drugs, and other controlled substances to promote a healthy living environment.

Vitamin B

Vitamin B refers to a class of water-soluble vitamins that play important roles in cell metabolism and the nervous system, including vitamins B1, B2, B3, B6, B12, and others.