Objects Design for an Etiognostic Study

Abstract

In the design of the objects of an etiognostic clinical study, the first-order principles are the same as in the context of a diagnostic study; but then, important differences arise from the etiognostic need for knowledge about causality in contrast to the acausal knowledge-base of diagnosis. The objects design in reference to the index and reference histories is rather challenging, and provision for the ceteris paribus premise in the causation’s manifestation is even more so. In these design challenges the clinical researcher is, again, guided by theoretical principles together with inputs from experts on the substantive issues.