A Study Is Designed to Test the Effectiveness of a Program

question 4

Multiple Choice

A study is designed to test the effectiveness of a program to teach adolescents about nutrition. All research participants are randomly assigned to two groups, one which goes through the program and the other which does not. Both before and after the program, all participants take a test measuring knowledge of nutrition. What type of experimental design is this?

• A) posttest-only control group design
• B) pretest-posttest control group design
• C) 2 × 2 factorial design
• D) 2 × 4 factorial design

---

Definitions:

Low-sodium Diet

A dietary plan that restricts the intake of sodium to help manage blood pressure and reduce the risk of cardiovascular disease.

Sodium Content

The amount of sodium present in a particular food or solution, key for maintaining cellular function and fluid balance.

Hospital Menu

The selection of food options available to patients during their stay in a hospital, typically designed to accommodate various dietary needs and preferences.

Peripheral Vascular Disease

A circulation disorder that causes narrowed or blocked blood vessels outside of your heart and brain.