TABLE 2:

CHANGE IN ACCEPTABILITY OF INTERVENTION MEASURE (AIM), FEASIBILITY OF INTERVENTION MEASURE (FIM), AND MOBILE APPLICATION RATING SCALE (MARS) ACROSS ITERATIONS.

	Score
AIM
Prototype 1 Mean	4.4
Prototype 2 Mean+	4.4
Change Score	0.0
FIM
Prototype 1 Mean	4.2
Prototype 2 Mean+	4.5
Change Score	0.3
MARS
Section A: Engagement
Prototype 1 Mean	4.0
Prototype 2 Mean+	4.0
Change Score	0.0
Section B: Functionality
Prototype 1 Mean	4.2
Prototype 2 Mean+	4.3
Change Score	0.1
Section C: Aesthetics
Prototype 1 Mean	4.2
Prototype 2 Mean+	4.2
Change Score	0.0
Section E: App Subjective Quality
Prototype 1 Mean	4.0
Prototype 2 Mean+	4.2
Change Score	0.2
Section F: App-Specific
Prototype 1 Mean	4.2
Prototype 2 Mean+	4.1
Change Score	−0.1

Note: AIM: Acceptibility of Intervention Measure, FIM: Feasiblity of Intervention Measure, MARS: Mobile Application Rating Scale. MARS Section D (Information, e.g., app store description, use in published scientific research) was omitted due to the development phase of this work.

⁺11 of 12 participant responses to date.