This is a preview. Log in through your library . Abstract Many interesting sociological questions pertain to how the association between two variables depends on a third variable. In sociological ...

This article deals with the problem of local sensitivity analysis, that is, how sensitive are the results of a statistical analysis to changes in the data? A general methodology of sensitivity ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...