You are asked about your student status in two places; 1. personal info and 2. education expenses. The first is used to determine eligibility to be someone else's dependent. The 2nd is for eligibility for a credit or deduction. In neither place does it specify for the whole year.
If you're having a problem, try deleting your personal info and re-entering.
Go through the entire education interview until you reach a screen titled "Your Education Expenses Summary". Click delete next to the student's name. You'll then get the "Your Education Expenses Summary" screen again. Click the "Add a student" button.
Basically, if you were a full time student for *any* *one* *semester* that started during the tax year, then you may qualify to be claimed as a dependent on someone else's tax return if other conditions are also met.