M5A1: Confounder or effect modifier?
If viewing this through the Assignment tool, click the title above to go to the Submissions area.
By the end of this activity, you will be able to:
Evaluate a factor as a potential confounder or effect modifier
Implement the 3 major criteria for confounding
Before beginning this activity, review the faculty notes and readings in the text on bias, confounding, and effect modification. You may want to draw the confounding diagram to help visualize relationships. Work through each of the steps to evaluate confounding, constructing 2 x 2 tables and calculating measures of association as required.
Determining if a factor is a confounder or effect modifier is not always obvious by “common sense” thinking. As you work through the logic and evaluate each of the criteria for confounding, ask yourself if your interpretations make sense. If the factor was a confounder, in what direction did it influence the exposure-disease association? Is it a logical influence? If the factor was an effect modifier, does the difference in relationship between groups of the factor actually make sense (i.e., is it plausible)?
INSTRUCTIONS ARE ATTACHED:
Instructions for Individual Assignment
is attached
.
M5A1 Confounder or effect modifierIf viewing this through .docx
1. M5A1: Confounder or effect modifier?
If viewing this through the Assignment tool, click the title
above to go to the Submissions area.
By the end of this activity, you will be able to:
Evaluate a factor as a potential confounder or effect modifier
Implement the 3 major criteria for confounding
Before beginning this activity, review the faculty notes and
readings in the text on bias, confounding, and effect
modification. You may want to draw the confounding diagram
to help visualize relationships. Work through each of the steps
to evaluate confounding, constructing 2 x 2 tables and
calculating measures of association as required.
Determining if a factor is a confounder or effect modifier is not
always obvious by “common sense” thinking. As you work
through the logic and evaluate each of the criteria for
confounding, ask yourself if your interpretations make sense. If
the factor was a confounder, in what direction did it influence
the exposure-disease association? Is it a logical influence? If
the factor was an effect modifier, does the difference in
relationship between groups of the factor actually make sense
(i.e., is it plausible)?
INSTRUCTIONS ARE ATTACHED:
Instructions for Individual Assignment
is attached
