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7 Cards in this Set
- Front
- Back
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Blocking |
Breaking a population into groups based on a trait (variability within groups is less than that between groups) and taking a random sample of each group, then adding back together. experimental design |
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Bias |
A factor that results in non-random selection of a population or item. |
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SRS |
Randomly and blindly selecting a sample out of a population with no bias (A sampling method in which each individual in a population has an equal chance of being selected.)) |
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Blind |
A decision made with no outside influencing factors, in an experiment it is when the patient has no idea whether or not they're receiving the treatment |
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Cluster |
Small groups (naturally occurring) are selected from a population, all of them should be representative of the greater population, pick a few at random, sample those. |
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Stratified |
Split population into several homogeneous groups, perform a simple random survey on each, put the resulting groups back together. sampling technique |
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Non-Response |
When people who are asked to participate in a survey don’t respond. |
