Abstract

Epistemological realism was postulated as a prolegomenon to clinical research. Observation of single cases must precede any effort for generalization. Observation of men by men is always a field process. In clinical research the experimenter exercises a great amount of power over the subject, thus a naive empirical approach and operationism may be misleading. Clinical theory must be coated in a language different from empirical data and enable the formation of causal chains of events.