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Suppose that some people report themselves as unemployed when,in fact,they are working in the underground economy.If these persons were counted as employed,then
Reliability
In statistics and psychometrics, reliability refers to the consistency of a measure or test over time or across different raters.
Validity
The degree to which a test accurately measures what it is intended to measure.
COPSystem
An assessment tool designed to aid in career guidance, integrating values, interests, and abilities.
Occupational Groups
Categories of occupations that are grouped together based on similar job duties, industries, or fields of expertise.
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