Since every state has its own standardized test, comparing test
scores across state lines is like comparing apples to oranges.
Others worry that with 50 different statewide tests, the federal government will lack a meaningful tool with which to compare test
scores across state lines.
Not exact matches
Still, it will be easier than in the past for psychometricians to compare schools
across state lines, since cut
scores are much closer to one another (and to NAEP) now.
For such comparisons, they'll still need to rely on NAEP, PISA, TIMSS, NWEA, SAT
scores, and other external measures that are consistent
across state lines.
EEI
Scores are adjusted using a nationally administered, well - respected assessment called the National Assessment of Academic Progress (NAEP) that makes comparison
across state lines possible.