Examlex
Define the following:mixed methods
Disadvantaged Populations
Groups of people who face greater obstacles to health, education, and economic opportunity due to social, economic, or environmental disadvantages.
Validity
The degree to which a test or measurement accurately reflects or assesses the specific concept that it is intended to measure.
Reliability
The degree to which an assessment tool or measurement produces stable and consistent results over repeated applications or observations.
Probability Sample
A sampling method in which every member of the population has a known and non-zero chance of being selected.
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