How would you define the effects of confounding in respect to
mortality calculations? What are these confounding variables and
how do they affect mortality?
Confounding is present in each of the following situations.
Explain the nature of the confounding and why the conclusions are
drawn may not be valid.
a) A study of proofreading compares the percent of missed errors
when there is a high rate of errors (1 error in every 5 lines of
text) and a low rate (1 error in every 20 lines of text). A
document is prepared in which the first part has a high error rate
and the...