Table 3. Key times and NASA-TLX scores.

	Reading time (min)	Proportion with screen still	Proportion scrolling	Verbal summary time (min)	Average workload scores
SOAP	11.6	61%	38%	2.1	30.6 (10.57)
APSO	10.6	60%	39%	1.9	31.3 (8.75)
SAPO	11.3	57%	40%	2.3	31.9 (7.04)
Mix	12.5	59%	39%	2.1	31.7 (7.78)
Average	11.5	59%	39%	2.1	31.4 (8.52)

Abbreviations: APSO, Assessment, Plan, Subjective, and Objective; NASA-TLX, National Aeronautics and Space Administration Task Load Index; SAPO, Subjective, Assessment, Objective, and Plan; SOAP, Subjective, Objective, Assessment, and Plan.