biostat 4
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7 Terms
Non-probability sampling
Subjective selection by researcher, not based on random selection
Probability sampling
Involves random selection for strong statistical inferences
Sampling bias
Higher risk in non-probability sampling, weaker inferences about population
Convenience Sampling
Selects samples conveniently available, easy recruitment, not representing entire population
Purposive Sampling
Based on researcher's expertise, used in qualitative research for detailed knowledge
Quota Sampling
Ensures representation of specific characteristics, subjects from different subgroups with specific traits
Snowball Sampling
Involves subjects identifying others, used primarily for exploratory purposes
