confounder

About 0.04 uses per million words.

Meaning

1. noun A person who confounds.
2. noun A factor, in data analysis, that causes the effects of two distinct processes to be indistinguishable; a confounding variable.

Similar words

confoundment confuter confustication confusement confusion mix up mix-up misconceiver misconstruer confusionism

Often followed by

of in is and for that score or can