Rethinking self-reported measure in subjective evaluation of assistive technology

Table 11 Modified weights

	Initial weight	1st iteration	2nd iteration	3rd iteration	4th iteration	5th iteration
Mental load	0.50	0.35	0.35	0.45	0.46	0.57
Physical load	0.50	0.25	0.50	0.50	0.50	0.50
Temporal load	0.50	0.65	0.65	0.55	0.65	0.55
Effort level	0.50	0.70	0.60	0.50	0.75	0.75
Performance level	0.50	0.76	0.65	0.75	0.60	0.65
Frustration level	0.50	0.65	0.45	0.50	0.45	0.45