Random Assignment Is Feasible Only When an Investigator Is Using

question 133

True/False

Random assignment is feasible only when an investigator is using a manipulative experimental strategy to "create" values on an independent variable.

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Definitions:

Pharynx

The muscular tube in humans and other vertebrates connecting the mouth and nasal cavities to the esophagus and larynx; plays a key role in swallowing and breathing.

Vocal Cords

Bands of muscle tissue located in the larynx that vibrate to produce sound when air is expelled from the lungs, enabling speech and singing.

Epithelium

A membranous tissue covering internal organs and other internal surfaces of the body, involved in protection, secretion, and absorption.

Bronchus

Airway connecting the trachea to a lung.