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john hockey
john hockey
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#ExternalValidity #Definition #ResearchMethods & #ResearchTypes
https://pagladirector.com/exte....rnal-validity-defini

External Validity - Definition, Types & Research Methods - Pagla Director
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External Validity - Definition, Types & Research Methods - Pagla Director

The concept of validity is now well-established in almost all research fields. According to this concept, a research study or test is valid if it measures
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