Last Year, the State Increased the Speed Limit on One

question 18

Multiple Choice

Last year, the state increased the speed limit on one section of highway from 55 to 65 mph. To evaluate the effect of the change, a researcher gathered accident reports for six months before the change and for six months after the change. This is an example of a(n) ____.

• A) time-series design
• B) pretest-posttest design
• C) cross-sectional design
• D) longitudinal design

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Definitions:

Stretching Exercise

Activities or movements aimed at increasing muscle flexibility and joint range of motion.

Lie Flat

A body position where an individual lays down horizontally on a surface with the back facing down and is often advised for various health reasons.

Gait Belt

A safety device used by caregivers to support a person who is unsteady on their feet during walking or transferring.

Patients

Individuals receiving or registered to receive medical treatment.