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6 Cards in this Set

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Error that occurs when a study looks at only one portion of the population rather than a representative population
Sampling error
Eliminate bias
1. Identifying confounding factors and controlling for them
2. Random assignment
Biases
Unintentional error that establishes:
1. A faulty sense of causality
2. A faulty assumption that there is no connection between cause and effect
Systematic error in the process of determining the assignment of subjects to specific groups
Selection bias
When inconsistent or different methods are applied to the control and experimental groups
Measurement bias
Unreliable data given by subjects
Recall bias.