Before revision: Face validity is a starting point, but should never be assumed to be probably valid for any given purpose, as the "experts" have been wrong before—the Malleus Malificarum (Hammer of Witches) had no support for its conclusions other than the self-imagined competence of two "experts" in "witchcraft detection , " yet it was used as a "test" to condemn and burn at the stake tens of thousands men and women as "witches .
After revision: Face validity is a starting point but should never be assumed to be probably valid for any given purpose, as the "experts" have been wrong before—the Malleus Malificarum (Hammer of Witches) had no support for its conclusions other than the self-imagined competence of two "experts" in "witchcraft detection , " yet it was used as a "test" to condemn and burn at the stake tens of thousands men and women as "witches ,