Boston cognitive assessment (BOCA) — a comprehensive self-administered smartphone- and computer-based at-home test for longitudinal tracking of cognitive performance

Table 6 Factor analysis for BOCA

BOCA Subscales	Item-Total Correlation	Cronbach’s Alpha if Item Deleted
Memory/Immediate Recall	0.63	0.84
Language	0.51	0.85
Mental Rotation	0.50	0.85
Clock Test	0.66	0.83
Attention	0.68	0.83
Mental Math	0.63	0.84
Orientation	0.72	0.83
Memory/Delayed Recall	0.59	0.85

ISSN: 1471-2377