Scenario Screen: A Dynamic and Context Dependent P300 Stimulator Screen Aimed at Wheelchair Navigation Control

Table 2

Subject sample median sensitivities, specificities, and accuracies with respect to the number of trials scored . IQR: interquartile range.

trials	Sensitivity (IQR)	Specificity (IQR)	Accuracy (IQR)
(1)	0.33 (0.22–0.44)	0.94 (0.93–0.95)	0.89 (0.87–0.91)
(2)	0.44 (0.22–0.64)	0.95 (0.93–0.97)	0.91 (0.87–0.94)
(3)	0.56 (0.25–0.75)	0.96 (0.93–0.98)	0.93 (0.88–0.96)
(4)	0.56 (0.47–0.78)	0.96 (0.95–0.98)	0.93 (0.91–0.96)
(5)	0.67 (0.56–0.78)	0.97 (0.96–0.98)	0.94 (0.93–0.96)
(6)	0.78 (0.56–0.89)	0.98 (0.96–0.99)	0.96 (0.93–0.98)
(7)	0.89 (0.67–1.00)	0.99 (0.97–1.00)	0.98 (0.94–1.00)
(8)	0.89 (0.67–1.00)	0.99 (0.97–1.00)	0.98 (0.94–1.00)
(9)	0.89 (0.69–1.00)	0.99 (0.97–1.00)	0.98 (0.95–1.00)
(10)	1.00 (0.78–1.00)	1.00 (0.98–1.00)	1.00 (0.96–1.00)