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Establishing the relationship between performance on the test and on some other indicator of the construct of interest is the essential feature of ___.
Age-Specific Mortality Rate
The death rate within a specific age group in a population during a certain time period.
Disease X
A placeholder name given by the World Health Organization to represent a hypothetical, unknown pathogen that could cause a future epidemic.
Younger Than 65
A demographic criterion often used in research and healthcare to define a population segment that does not fall into the senior age group, typically below the age of 65.
Crude Death Rate
A measurement of the number of deaths per 1,000 individuals per year in a given population, reflecting overall mortality.
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