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In a true experimental study, the subjects should be assigned to groups randomly. If this is not possible and a researcher uses intact groups, they are performing a _______________.
Safety Pin
A pin, made of metal or plastic, that is designed with a simple spring mechanism and a clasp to protect the user from being poked by the sharp point.
Room Temperature
The ambient temperature of a living space, generally considered comfortable for humans, typically around 68°F to 72°F (20°C to 22°C).
Pulmonary Aspiration
The inhalation of food, liquid, or other substances into the lungs, potentially causing inflammation or infection.
Blue Food Coloring
Synthetic or natural substances used to impart blue color to food products, sometimes derived from plants, minerals, or produced chemically.
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