. 2021 Apr 8;106:173–184. doi: 10.1016/j.tranpol.2021.04.002

Table 3.

Correlation test for three mobility indexes.

Index	Apple		Google		Citymapper
Index	Corr.	Obs.	Corr.	Obs.	Corr.	Obs.
Apple	1	298	0.862^a	291	0.730^a	265
Google	0.862^a	291	1	291	0.861^a	265
Citymapper	0.730^a	265	0.861^a	265	1	265

Correlation is significant at the 0.001 level (2-tailed).