Scaled scores provide a useful measuring tool for assessment programs
and are particularly useful in providing a basis for long-term
comparisons of examination results.
What Are Scaled Scores?
Scaled scores are transformed raw scores that use a numerical
procedure that involves the overall test mean, the standard deviation
and the original raw score. For every possible raw score on a test form,
there is a corresponding scaled score. When multiple forms of a test are
used, or when results are compared from year to year, scaled scores are
needed to adjust for possible differences in test forms.
Why Eliminate Raw Scores?
Scaled scores are intended to make scores more meaningful by defining
a scale of measurement that is not tied to a particular form of a test.
Scaled scores help resolve confusion among users of the score reports
when there are changes in the testing program.
A major benefit of scaled scores for test takers is that it provides
a way for them to compare their level of performance from one
administration of the exam to another. A reporting scale that remains
constant across test forms enables candidates to make comparisons on how
ACF Scaled Score
Assessment programs use different types of scaled scores. ACF, upon
the advice of PSI, our CBT partner, uses a scaled score between
200–400 with 300 being the passing score.