Unfortunately, person-fit statistics only tell if the set of responses is likely or unlikely, and cannot prove anything. The results of the analysis might look like an examinee cheated, but there is no way to go back to when the test was administered and prove it . This limits its practical applicability on an individual scale. However, it might be useful on a larger scale; if most examinees at a certain test site or with a certain proctor have unlikely responses, an investigation might be warranted.
Unfortunately, person-fit statistics only tell if the set of responses is likely or unlikely, and cannot prove anything. The results of the analysis might look like an examinee cheated, but the ability to prove it by returning to when the test was administered is not possible . This limits its practical applicability on an individual scale. However, it might be useful on a larger scale; if most examinees at a certain test site or with a certain proctor have unlikely responses, an investigation might be warranted.
R
there is no way to go back
the ability to prove it by returning
R
and prove it
is not possible