Table 2. Two examples of calculating multi-tasking score.

	Example 1		Example 2
Total time CET	420 s		480 s
Stage 1
Total time	180 s		55 s
Time on 3 tasks simultaneously	20 s	11%	0	0%
Time on 2 tasks simultaneously	100 s	55%	0	0%
Time on 1 task	60 s	33%	55	100%
Stage 2
Total time	215 s		225 s
Time on 2 tasks simultaneously	55 s	26%	0 s	0%
Time on 1 task	160 s	74%	225 s	100%
Stage 3
Total time	25 s		200 s
Time on 1 task	25 s	100%	200 s	100%
Proportion of time spent on 3 tasks simultaneously	11%	11.00	0%	0.00
Proportion of time spent on 2 tasks simultaneously	(55%+26%)/1.5	53.72	(0%+0%)/1.5	0.00
Proportion of time spent on 1 task	(33%+74%+100%)/3	69.14	(100%+100%+100%)/3	100.00
Total Multi-tasking		133.86		100.00