Although Always a Problem in Research on Aging, the Issue

question 59

Multiple Choice

Although always a problem in research on aging, the issue of selective attrition most clearly affects what type of study?

• A) Longitudinal
• B) Sequential
• C) Laboratory
• D) Observational

---

Definitions:

Environmental Protection Agency

A governmental organization responsible for the regulation of activities to protect human health and the environment by enforcing laws related to air and water quality and hazardous waste.

Solid Waste

Non-liquid, non-soluble materials ranging from municipal garbage to industrial wastes that contain complex, sometimes hazardous, substances.

Hazardous

Refers to materials or conditions that pose potential danger or risk to health, safety, or the environment.

Drinking Water

Water that is safe and clean for human consumption without the need for further treatment.