This study evaluates a new assessment for spatial neglect. People with spatial neglect often pay much more attention to one side of the body while ignoring the other side even though they have no difficulty seeing. This new, investigational assessment is called the Kessler Foundation Neglect Assessment Process with 13 items (KF-NAP®-13). This study seeks to determine if the new assessment is better than existing tests in detecting spatial neglect in persons who had a stroke more than 6 months ago.