preregistration

An early registration, before the normal or traditional time, as with early online check-in at hotels.

There is no charge for participation but pre-registration is necessary since space is limited.

Registration (of a study design) before a clinical trial (or any other type of scientific experiment) begins, for methodologic and thus epistemologic rigor.

Before registration.

a preregistration check

Pertaining to preregistration (of scientific trials or other experiments).