. 2021 Apr 7;9(4):e23649. doi: 10.2196/23649

Table 3.

Correlations between Mobile App Rating Scale (MARS) overall quality, number of MARS focus points, number of MARS theoretical background/strategies, number of technical aspects, and MARS subjective quality.

MARS subscales	Behavior change techniques	MARS focus points	MARS theoretical background/ strategies	MARS technical aspects	MARS subjective quality
MARS engagement	0.55^a	0.58^b	0.69^b	0.63^b	0.69^b
MARS functionality	0.02	0.30	0.36	–0.24	0.64^b
MARS aesthetics	0.46^a	0.59^b	0.61^b	0.37	0.90^b
MARS information quality	0.32	0.34	0.37	0.10	0.69^b
MARS overall quality	0.45	0.55^a	0.67^b	0.31	0.90^b
MARS subjective quality	0.42	0.46^a	0.60^b	0.36	—^c

^aCorrelation was significant at P<.05.

^bCorrelation was significant at P<.01.

^cNot applicable.