Bias in SurveysMDM4U – Mathematics of Data Management

What is Bias?

Bias

• When the results of the survey favor a particular outcome.

Types of Bias

Sampling Bias

• When the sample or individuals being sampled do not represent

the overall population.

Types of Bias

Non-Response Bias

• When individuals choose not to respond to the survey that

represent a particular(s) groups.

Types of Bias

Measurement Bias

• When the process or measurement during the survey affect the

variable being studied.

Types of Bias

Response Bias

• When individuals give false responses to the survey.