From the Full Grade Center, locate the column for the assessment in question and the row for the student whose assessment you wish to view. If the attempt needs grading, a yellow "!" icon will appear in the table cell.
When you hover your mouse over the cell, a gray (down-arrow) button will appear on the right-side of the cell. Click the button, then click Attempt [DATE] from the pulldown list.
There are two ways to locate assessment submissions in an Ultra-style course site.
From the Gradebook
From the Gradebook's Gradable Items list, locate and click on the assessment in question.
From the Course Content List
From the Course Content list, locate and click on the assessment in question.
This opens the assessment's Content and Settings page. Choose the SUBMISSIONS tab at the top.