Which Method Is the BEST Way to Divide Participants into Groups

question 17

Multiple Choice

Which method is the BEST way to divide participants into groups for an experiment?

• A) dividing participants by hair color
• B) allowing participants to choose which group to join
• C) dividing participants by where their names fall on an alphabetic list
• D) flipping a coin for each participant

---

Definitions:

Deductible

The amount an insured individual must pay out-of-pocket before an insurance company pays a claim.

Accident Reconstructionist

Person with knowledge of both crime scene investigations and the mathematics that can help to explain the circumstances surrounding the accident.

Skid Marks

Visible marks left on the road surface by tires that have slipped or skidded, often analyzed in accident reconstructions.

Drag Factor

A coefficient used in calculating the deceleration or resistance force acting against a moving object or vehicle, often in automotive and aeronautical engineering.