Table 3.

Final tool scoring by patients (N=20) and clinicians (N=10): Likeability and Usability. Prespecified targets and achieved results are presented; bolded results are at or above target.

	Tool	Patients (N=20)			Clinicians (N=10)
		Target	Result	Target		Result
Likeability	Single question (“Do you like this tool?”) graded on a Likert scalea; metric: score >4 (agree or strongly agree)	80%	75%	80%		100%
Likeability	Net promoter score (NPS)b: “how likely are you to recommend this tool to another patient with MS/clinician?” [46]	Good: >0; favorable: >20: excellent: >50	50%	Good: >0; favorable: >20: excellent: >50		40%
Usability	SUSc: a rapid, valid, scalable industry standard, reliable with small sample sizes	—d	—	75 (68 is average)		78 (SD 11.8)
Perceived usefulness	Health ITUESe-based questions for perceived usefulness [30,31]; metric: score ≥4 (agree or strongly agree)	80%	88%	100%		95%
Perceived ease of use	Health ITUES-based questions for perceived ease of use [30,31]; metric: score ≥4 (agree or strongly agree)	80%	97%	100%		100%

^aLikert scale ranging from 1 (strongly disagree) to 5 (strongly agree).

^bNPS responses (0-10 scale) were calculated by subtracting the percentage of detractors (those who scored 0-6) from the percentage of promoters (those who scored 9 or 10).

^cSUS: System Usability Scale.

^dNot available.

^eHealth ITUES: Health IT Usability Evaluation Scale.