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A group of people took a new IQ test twice. Nearly all of those who did well the first time they took it also did well the second time. Nearly all those who did poorly the first time did poorly again the second time. Therefore, this test has __________ reliability and __________ validity.
Senior Citizens
Individuals usually aged 65 or older, often considered retired and eligible for certain benefits.
Heat-Regulating Mechanism
The biological system that maintains the body's internal temperature within a safe range, regardless of external conditions.
Subcutaneous Fat
A layer of fat located under the skin, serving as insulation and energy storage.
Room Temperature
The ambient temperature of a room, typically considered to be between 20°C and 22°C (68°F and 72°F).
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