Epidemiology: Sample Errors & Bias

Front 1

Error that occurs when a study looks at only one portion of the population rather than a representative population

Back 1

Sampling error

Front 2

Eliminate bias

Back 2

1. Identifying confounding factors and controlling for them
2. Random assignment

Front 3

Biases

Back 3

Unintentional error that establishes:
1. A faulty sense of causality
2. A faulty assumption that there is no connection between cause and effect

Front 4

Systematic error in the process of determining the assignment of subjects to specific groups

Back 4

Selection bias

Front 5

When inconsistent or different methods are applied to the control and experimental groups

Back 5

Measurement bias

Front 6

Unreliable data given by subjects

Back 6

Recall bias.