How would you estimate the prevalence of inaccurate research in the field, if not by multiplying each (known) source of error by its estimated prevalence, and a

How would you estimate the prevalence of inaccurate research in the field, if not by multiplying each (known) source of error by its estimated prevalence, and also using some estimate of the independence between errors? (And of course including general sources of error that affect all scientific research and aren't specific to any particular field.) And as far as independence goes, I haven't seen any research to suggest these errors have anything less than 100% independence, although if there is any research suggesting that these errors (or any other errors in science research) are correlated then I'd love to see that.