The original sources for the two models for field methods.are both extreme in the ways that they fail as solutions to the observer's paradox.

We call it the observer's paradox.

This type of speech is difficult if not impossible to elicit because of the Observer's Paradox.

Nor is the observer's paradox an issue, since speakers are not tape-recorded and are not even aware that they are being observed.

In the social sciences, the observer's paradox refers to phenomena where the observation of an event or experiment is influenced by the presence of the observer/investigator.

Patricia Cukor-Avila, "Revisiting the Observer's Paradox."

In the field of sociolinguistics, the term Observer's Paradox was coined by William Labov, who stated with regards to the term: