Term
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Definition
| some participants of the sample are not part of the population |
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Term
| What is census in sampling? |
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Definition
| ask everyone to participate |
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Term
| What is probabilistic sampling? |
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Definition
- Clear inclusion criteria
- Knows exact size of population
- Each individual has a specified probability to be selected
- Selection is random |
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Term
| Non-probabilistic sampling |
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Definition
- Unclear inclusion criteria
- Can yield a biased sample
- Low cost |
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Term
| What kind of non-probabilistic sampling are there? |
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Definition
Convenience sampling: Get people who are easy to get
Snowball sampling: Participants recruit other participants |
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Term
| What is the goal of an experiment? |
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Definition
| determining a cause-effect relationship |
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Term
| What is the indepenent variable? |
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Definition
| The one that a treatment is different between groups |
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Term
| What is the dependent variable? |
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Definition
| the one the result is measured |
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Term
| what is an extraneous variable |
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Definition
| all other variables that could influence the outcome of the experiment |
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