McGrath Lewis said the Harvard admissions office views grades as a more important factor than tests when considering a candidate for admission.
"Grades over time are ordinarily more useful in making the academic assessment of a candidate," she wrote.
The ETS announcement follows a recent court settlement in a California suit filed two years ago by a physically disabled man who believes his failure to be accepted to business school was the result of his flagged scores.
--Staff writer Nicole B. Usher can be reached at usher@fas.harvard.edu.