ABSTRACT
The search for evidenced-based studies that evaluated systemic intervention in situations of collective and national trauma produced hardly any results. There are several main reasons for the paucity of systematic evaluations of systemic interventions in situations of collective and national trauma. Patton refers to several types of evaluations, and named the classical evaluations as summative evaluations. His aim is to judge the extent to which desired goals have been attained and whether the measured outcomes can be attributed to a specific intervention so that the desired goals can be generalized to other similar conditions. He explains why it is almost impossible to implement evaluations of systemic interventions in situations of collective and national trauma. The author will present different views of evaluations that seem more relevant to situations of collective and national trauma that are definitely friendlier to both social workers and mental health helpers as well as to the recipients of the help.
