"Why Do We Do Natural Experiments?" Asks a Student

question 58

Multiple Choice

"Why do we do natural experiments?" asks a student. "After all, each disaster that causes a natural experiment is unique." A good answer would be:

• A) "They are an inexpensive ways to gather detailed individualized data on disaster survivors."
• B) "They provide the highest levels of internal and external validity when studying the effects of disasters."
• C) "The sheer volume has allowed researchers to identify patterns of reactions in those persons involved in disasters."
• D) "The findings to date have been instrumental in helping prevent casualties from natural disasters."

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Definitions:

Urinometer

A device used to measure the specific gravity of urine, an indicator of hydration and kidney function.

Glucose

A simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.

Urethra

A tube that connects the urinary bladder to the urinary meatus for the removal of fluids from the body.

Meatus

A natural passage or opening in the body, such as the external opening of the urethra.