List six techniques used to control for confounding in the early stages of planning and implementing data collection or research study.

Question

What will be an ideal response?

Answer 1

The list of techniques used to control for confounding in the early stages of planning and implementing data collection or research study includes: 
1) literature reviews to identify confounding variables from other studies; 
2) deciding to collect data on these known confounding variables;
3) restricting data collection to limited groups of the confounders; 4
) randomizing subject enrollment;
5) randomizing subjects to intervention groups in an experimental trial; and
6) collecting data such that comparison groups are matched on confounding variables.