Da jedoch die Anzahl der evaluierenden Krankenschwestern begrenzt ist, ist es natürlich unmöglich alle Bewohner einer Institution am gleichen Tag zu evaluieren. ###>However the number of nurse-evaluators is limited and given that an evaluator can assess 5 to 10 clients per day, obviously it is impossible to evaluate all the clients of an institution on the same day. Hence, the period of evaluation of an institution varies from a few days to a few weeks.