what is the difference between descriptive and evaluative force for a term
Normative
Normative generally means relating to an evaluative standard . Normativity is the phenomenon in human societies of designating some actions or outcomes as good or desirable or permissible and others as bad or undesirable or impermissible . A norm in this normative sense means a standard for evaluating or making judgments about behavior or outcomes . Normative is sometimes also used , somewhat confusingly , to mean relating to a descriptive standard : doing what is normally done or what most others are expected to do in practice . In this sense a norm is not evaluative , a basis for judging behavior or outcomes ; it is simply a fact or observation about behavior or outcomes , without judgment . Many researchers in this field try to restrict the use of the term normative to the evaluative sense and refer to the description of behavior and outcomes as positive , descriptive , predictive , or empirical . 
Normative generally means relating to an evaluative standard . Normativity is the phenomenon in human societies of designating some actions or outcomes as good or desirable or permissible and others as bad or undesirable or impermissible . A norm in this normative sense means a standard for evaluating or making judgments about behavior or outcomes . Normative is sometimes also used , somewhat confusingly , to mean relating to a descriptive standard : doing what is normally done or what most others are expected to do in practice . In this sense a norm is not evaluative , a basis for judging behavior or outcomes ; it is simply a fact or observation about behavior or outcomes , without judgment . Many researchers in this field try to restrict the use of the term normative to the evaluative sense and refer to the description of behavior and outcomes as positive , descriptive , predictive , or empirical .
Normative generally means relating to an evaluative standard. Normative is sometimes also used, somewhat confusingly, to mean relating to a descriptive standard: doing what is normally done or what most others are expected to do in practice. Many researchers in this field try to restrict the use of the term normative to the evaluative sense and refer to the description of behavior and outcomes as positive, descriptive, predictive, or empirical.
Normative generally means relating to an evaluative standard . Normative is sometimes also used , somewhat confusingly , to mean relating to a descriptive standard : doing what is normally done or what most others are expected to do in practice . Many researchers in this field try to restrict the use of the term normative to the evaluative sense and refer to the description of behavior and outcomes as positive , descriptive , predictive , or empirical .