Table 1.

Mean RTs (in ms) for the primary task and mean percentage of correct subtractions in the secondary task (and standard deviations) for each age group and task type

	Younger adults		Older adults
	Single-task	Dual-task	Single-task	Dual-task
Primary task RTs (ms)	341 (43)	512 (87)	471 (167)	713 (235)
Secondary task (subtraction) % correct	–	45 (7.9)	–	38 (10.7)
MoCA			25 (3)
CRI-education			118 (17)
CRI-working activity			122 (25)
CRI-leisure time			110 (18)
CRI-global score			122 (19)

For the older adults only, scores at the Montreal Cognitive Assessment (MoCA) and Cognitive Reserve Index Questionnaire (CRIq, subscales and global score) are also reported