(1) This fact, the limited applicability of the information obtained from animal experiments, and the further fact that even test results obtained in human subjects cannot be applied on a world-wide basis, exhort us to take care not to subscribe to an all-too apodictic classification of therapeutic measures into effective and noneffective.
(2) Furthermore, the double task is not accomplished in the same fashion in logic-formal sciences and factic-natural ones, both groups having an apodictic adequation (absolute in the first group, relative in the second one) between the context of discovery and the context of justification, be it formal or experimental, whereas in social sciences there is no such adequation, as they are still searching and trying to establish the mutually foundating relationship between both contexts.
(3) The four stages integrate in the search (in the ideal sense at which we aim, according to Kant) of a totality as near to apodicticity as possible, that is to say, as adequate as possible to its object.