 According to “evidentialists”, it is the believer’s possession of evidence for p. What is it, though, to possess evidence for p? Some evidentialists (though not all) would say it is to be in an experience that presents p as being true. According to these evidentialists, if the coffee in your cup tastes sweet to you, then you have evidence that the coffee is sweet. If you feel a throbbing pain in your head, you have evidence that you have a headache. If you have a memory of having had cereal for breakfast, then you have evidence about what you had for breakfast. And when you clearly “see” or “intuit” that the proposition “If Jack had more than four cups of coffee, then Jack had more than three cups of coffee” is true, then you have evidence for that proposition. On this view, evidence consists of perceptual, introspective, memorial, and intuitional experiences, and to possess evidence is to have an experience of that kind. So according to this “experientialist” version of evidentialism, what makes you justified in believing that p is your having an experience that represents p as being true (see Conee and Feldman 2008 and McCain 2014 for defenses of such a view). Other versions of evidentialism might identify other factors as your evidence, but would still insist that those factors are the J-factors.