Table 3. The percentage of HITs correctly classified by the majority (>50%) of KW’s, with range of percentage of correct “votes” for each image category in brackets.

Trial 1	0.03c	0.05c	0.03c_500_90%	0.03c_5000_99%
Normal (N = 30)	90%(25–95)	87%(30–90)	97%(50–100)	90%(30–90)
Mildly abnormal (N = 60)	58%(25–95)	83%(25–100)	63%(20–100)	80%(35–100)
Severely abnormal (N = 10)	100%(90–100)	100%(90–100)	100%(90–100)	100%(95–100)
Any abnormality (N = 70)	64%(25–100)	86%(25–100)	69%(20–100)	83%(35–100)
Trial 2	0.03c	0.05c	0.03c_500_90%	0.03c_5000_99%
Normal (N = 30)	97%(50–100)	97%(40–100)	97%(45–100)	50%(30–75)
Mildly abnormal (N = 60)	68%(10–100)	85%(20–100)	70%(15–100)	96%(45–100)
Severely abnormal (N = 10)	100%(95–100)	100%(95–100)	100%(95–100)	100%(95–100)
Any abnormality (N = 70)	80%(10–100)	87%(20–100)	74%(15–100)	97%(45–100)