biostat 4

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7 Terms

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Non-probability sampling

Subjective selection by researcher, not based on random selection

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Probability sampling

Involves random selection for strong statistical inferences

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Sampling bias

Higher risk in non-probability sampling, weaker inferences about population

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Convenience Sampling

Selects samples conveniently available, easy recruitment, not representing entire population

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Purposive Sampling

Based on researcher's expertise, used in qualitative research for detailed knowledge

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Quota Sampling

Ensures representation of specific characteristics, subjects from different subgroups with specific traits

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Snowball Sampling

Involves subjects identifying others, used primarily for exploratory purposes