Appropriacy: 0–3 for the right language function in the right register
A 3 expresses the language functions the situation calls for clearly and politely, in a formal or informal register that suits the situation and the person, with the social demands of the situation represented in an appropriate level of detail. A 2 performs the right functions in a mostly appropriate register. A 1 uses the simplest common expressions and basic routines that may be inappropriate for the situation. A 0 is a few short, isolated, pre-packaged phrases that do not relate coherently to the scenario.
