Table 1.

A summary of measures and data collection points across the 12-week follow-up period.

Measures		Baseline (T0)	End point (T2)	Weekly	Continuously
REDCapa survey
	Consent	✓
	Contact information	✓
	Study devices	✓
	Sociodemographics	✓
	Social environment	✓
	Medical history	✓
	Lifetime Depression Assessment Self-report [41]	✓
	Inventory of Depressive Symptomatology [42]	✓	✓
	The World Health Organization Composite International Diagnostic Interview Short-Form [43]	✓	✓
	Generalized Anxiety Disorder-7 [44]	✓	✓
	Work and Social Adjustment Scale [45]	✓	✓
	Brief Illness Perception Questionnaire [46]	✓	✓
	Life events [47]	✓	✓
	Client Service Receipt Inventory [48]	✓	✓
	User Engagement Scale (adapted for mHealthb use) [49]	✓	✓
	Emotional Self-Awareness Questionnaire [50]	✓	✓
	mHealth App Usability Questionnaire [51]	✓	✓
Active app measures
	Patient Health Questionnaire-8 [36]			✓
	Rosenberg Self-Esteem Scale [37]			✓
	Speech task			✓
Passive app measures
	GPS, Bluetooth, and ambient noise and light				✓
Fitbit
	Heart rate and step count				✓
Process evaluation
	App use metrics				✓
	Qualitative interviews		✓c

^aREDCap: Research Electronic Data Capture.

^bmHealth: mobile health.

^cOnly a select few participants will be asked to interview.