Table 7.

Mean importance ratings and reminder use (standard deviations) in young and older adults for event- and time-based naturalistic PM tasks, self-assigned intentions overall, self-assigned intentions with date and time specified, and results of one-way ANOVAs

PM Task	Age group
	Young	Old	F	p	${\mathit{\eta }}_{\text{p}}^2$
	M (SD)	M (SD)
Importance
Naturalistic event-based	1.74 (.51)	2.14 (.48)	7.04	.011	.14
Naturalistic time-based	1.93 (.55)	2.18 (.39)	2.62	.113	.056
Self-assigned (overall)	2.11 (.36)	2.15 (.43)	.12	.728	.002
Self-assigned date and time	2.17 (.58)	2.11 (.43)	.06	.806	.003
Reminder use
Naturalistic event-based	67.86 (51.31)	52.78 (49.92)	.97	.331	.02
Naturalistic time-based	51.92 (47.9)	36.11 (44.74)	1.22	.275	.028
Self-assigned (overall)	12.28 (22.23)	12.67 (28.7)	.003	.956	.000
Self-assigned date and time	13.33 (35.31)	0 (0)	1.12	.301	.05

Importance was measured using a three-point Likert-scale (1 = less important, 2 = important, 3 = very important). Reminder use was measured as the percentage of tasks for which participants reported to have used reminders