In this case, the value - added score will simply be an extrapolation — a guess based on the analyst's belief about whether the relationship between prior background and future test score is linear or, in some known way, non-linea
In this case, the value - added score will simply be an extrapolation — a guess based on the analyst's belief about whether the relationship between prior background and
future test score is
linear or,
in some known way, non-linea
in some known
way, non-
linear.