INDIANAPOLIS (AP) — A review panel has found a computer glitch had no discernible impact on the ISTEP standardized tests for students in third through eighth grades.

The Indianapolis Star reported Wednesday, however, the panel said some individual students’ tests possibly weren’t scored accurately. The panel said a better assessment of the issue was impossible since the problem occurred last spring.

The panel conducted the review for the state using data provided by CTB McGraw Hill, the state’s ISTEP testing vendor.

Final results for the spring exams given to 500,000 students haven’t been released amid concerns that changes may have led to significant drops in scores. The Indiana Department of Education has said average math scores are expected to drop by 24 percentage points and English scores by 16 percentage points.