Sampling Approaches in Qualitative Research

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Qualitative Inquiry

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In-depth exploration of a phenomenon

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Purposeful Sampling

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Intentional selection of individuals/sites

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Information Rich

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Participants/sites that provide valuable insights

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Maximal Variation Sampling

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Sampling cases with diverse characteristics

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Extreme Case Sampling

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Studying outlier cases for insights

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Typical Sampling

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Studying what is considered 'normal' or 'typical'

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Theory or Concept Sampling

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Sampling to generate or explore theories

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Homogeneous Sampling

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Sampling individuals with similar traits

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Critical Sampling

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Studying exceptional cases for deeper understanding

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Opportunistic Sampling

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Sampling based on emerging events during research