NTA UGC NET JUNE 2023 Paper-1
January 4, 2024Database-Management-System
January 4, 2024NTA UGC NET JUNE 2023 Paper-1
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Question 9
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When participants drop out of a study,leading to change in the nature of the sample,it would cause which of the following threats to internal validity?
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Selection threat
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Attrition threat
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History threat
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Testing threat
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Correct Answer: B