Table 2.

Descriptive results of Mobile Application Rating Scale (MARS) scores (N=38).

MARS scales	ICCa,b,c	Mean (SDd)	Range
Engagement	.92	2.77 (0.78)	1.00-4.73
Functionality	.72	3.55 (0.57)	1.75-4.42
Aesthetics	.72	3.12 (0.68)	2.00-4.78
Information quality	.88	3.24 (0.66)	1.40-4.33
Subjective quality	.85	2.65 (0.87)	1.00-4.50
App quality	.88	3.17 (0.58)	1.54-4.55

^aICC: intraclass correlation coefficient.

^bIntraclass correlations were calculated as a measure for interrater reliability in a two-way random model evaluating consistency among the three sets of ratings.

^cInterrater reliability was assessed based on the ratings of 37 apps. One app (“Asthma”) was removed from the app store before it was rated by all raters.

^dSD: standard deviation.