Abstract
Checking is one of the most common compulsive actions performed by patients with Obsessive- compulsive disorder (OCD) (APA, 2013; Abramowitz, McKay, Taylor, 2008). Incessant checking is undeniably problematic from a practical point of view. But what is epistemically wrong with checking again (and again)? The starting assumption for this paper is that establishing what goes wrong when individuals check their stove ten times in a row requires understanding the nature of the doxastic attitude that compulsive re-checkers are in, as they go back to perform another check. Does the re-checker know that the stove is off, and is thus looking for more of what she already has? Or is she an inquirer who repeatedly loses her knowledge and finds herself inquiring again and again into the same question? In this paper I present and discuss what I see as the three main hypotheses currently available on the market, and I suggest a refinement.