Table 3.

Interrater reliability, internal consistency, and test-retest reliability results.

Scale	Cronbach α		ICCa (95% CI)	Spearman-Brown split-half reliability	Test-retest reliability (Pearson r)
	R1b	R2			R1	R2
Engagement	.89	.83	0.85 (0.72-0.90)	0.92	0.94	0.96
Functionality	.51	.56	0.60 (0.39-0.74)	0.79	0.93	0.96
Aesthetics	.71	.83	0.75 (0.62-0.84)	0.85	0.95	0.91
Information	.77	.65	0.76 (0.63-0.84)	0.86	0.92	0.89
MARS-Fac total score	.84	.84	0.83 (0.74-0.89)	0.93	0.92	0.95
Subjective quality	.84	.84	0.78 (0.67-0.86)	0.82	0.94	1.00

^aICC: intraclass correlation coefficient.

^bR: reviewer.

^cMARS-Fa: Mobile Application Rating Scale in Farsi.