HLTH 4200 Week 5 Quiz

Question

1.

All of the following are types of bias (systematic error) in epidemiological studies EXCEPT:

The strategy that is not aimed at reducing selection bias is:

For a variable to be a confounder, it must be:

Approaches to handling a confounding variable in the design and/or analysis of a study include all of the following EXCEPT:

In the Bradford Hill Criteria for Causation, _______ is defined by the size of the association as measured by appropriate statistical tests.

All of the following should be considered when assessing causality EXCEPT:

Select all that apply.

When assessing the results of a study, what are the possible explanations for the observed results?

Which of the following is a true statement?

If a statistical test indicates a nonsignificant difference, then the result is due to chance alone.

Confidence intervals are influenced by the: