It means that the program is asking if the amount in Box 5 of the 1098-T (scholarships) was ALSO already entered, such as on a W-2 or 1099.
Sometimes, but not often, an employer will send funds (Scholarship) to the school (so it will show in Box 5), but then also list the same amount on the employee's W-2. Some sponsors will pay the school (Box 5) and also send the student Form 1099-MISC.
It is asking if you are entering the same amount twice.
It doesn't happen often.