A Limitation of Using Laboratory Experiments to Study Relationships Among

question 17

Multiple Choice

A limitation of using laboratory experiments to study relationships among variables is that they have:

• A)very limited internal validity.
• B)strong external validity but limited construct validity.
• C)strong internal validity but limited external validity.
• D)very limited randomization of variables.

---

Definitions:

Dysphagia

Difficulty or discomfort in swallowing, as a symptom of disease.

Nursing Assistant Personnel (NAP)

Healthcare workers who assist patients with daily activities, under the supervision of nursing and medical staff, in various settings like hospitals and nursing homes.

Aspiration

The inhalation of foreign materials such as food, liquid, or vomit into the lungs, which can cause respiratory distress or infection.

Enteral Tube Feedings

A method of delivering nutrition directly to the stomach or small intestine via a tube, used when a person cannot eat by mouth.