Table 2. Average attention index by group.

Technique	Count	Average	Standard deviation	Minimum	Maximum	Bias	Kurtosis
ST	30	49.57	911.6	32.62	68.02	0.08	-0.47
CN	31	431.5	827.9	28.67	62.32	0.70	0.33
UT	31	512.9	122.7	32.00	76.00	0.44	-0.91
Total	92	479.8	105.4	28.67	76.00	0.57	-0.29