Table 1.

Study 1: Means, Standard Deviations for Diversity of Activities Across and Within Days, Diversity of Social Partners Across Days, and Health Indicators and Zero-Order Correlations Among Variables

	YA	OA	Age difference
Variable	M (SD)	M (SD)	t	1	2	3	4	5	6	7	8
1. Diversity of activities within daysa Diversity of activities across days	.36a (.06)	.39b (.06)	−5.00**	—
2. Morning	.51a (.11)	.49a (.13)	1.14	.27**	—
3. Afternoon	.56a (.12)	.62b (.09)	−5.01**	.46**	.35**	—
4. Evening	.59a (.11)	.54b (.13)	3.38**	.01	.22**	.16**	—
5. Diversity of social partners across days	.57a (.08)	.55b (.08)	2.37*	.01	.10	.06	.11*	—
6. Subjective health problemsb	.01a (.74)	−.02a (.75)	0.27	.01	−.04	.04	.09	−.09	—
7. Chronic illnesses	2.24a (3.11)	5.08b (4.45)	−6.25**	.04	.03	.20**	.05	−.09	.45**	—
8. Functional limitations	1.50a (.83)	1.84b (.94)	−3.33**	.07	.04	.16**	.02	−.08	.50**	.54**	—

Note. Columns 1 to 8 report zero-order correlations among variables for the entire sample. Means with different subscripts differ with p < .05 between younger adults (YA) and older adults (OA).

^aDiversity of activities within days refers to activities that vary between morning, afternoon, or evening.

^bAggregate of subjective poor health (M_YA 2.41, SD_YA = 1.16; M_OA = 2.55, SD_OA = 1.15), t(363) = −1.15, p = .25; visits to doctors (M_YA = 2.35, SD_YA = .96; M_OA = 2.77, SD_OA = .89), t(250.70 = −4.20, p < .01; and sick days (M_YA = 3.34, SD_YA = 1.56; M_OA = 2.27, SD_OA = 1.65), t(362) = 6.03, p < .01; all three variables were z-standardized before aggregation due to different measurement scales.

^*p < .05.

^**p < .01.