. 2017 Dec 20;14(12):1606. doi: 10.3390/ijerph14121606

Table 2.

Means, standard deviations, and correlations between study variables at the intraindividual level.

Variable	M	SD	ICC	α_{Level 1}	α_{Level 2}	1	2	3	4	5	6	7	8	9	10	11
1. Unfinished tasks	2.40	1.22	0.55	0.93	0.99		0.08	0.19	0.15	−0.15	0.04	−0.28	−0.14	−0.11	−0.13	−0.15
2. Hours spent working	2.58	5.53	0.30			−0.03		−0.11	−0.01	0.59	0.02	0.23	−0.41	−0.29	−0.06	−0.21
3. SW to prepare ^a						0.11	0.08		0.10	−0.33	−0.18	−0.05	−0.08	0.02	−0.02	−0.01
4. SW to finish tasks ^a						0.09	0.08	0.21		−0.20	−0.11	0.14	−0.10	−0.04	−0.10	0.06
5. SW for other reasons ^a						−0.13	0.69	−0.12	−0.08		−0.29	0.27	−0.26	−0.19	−0.09	−0.24
6. Regular work ^a						0.03	0.13	−0.02	−0.02	−0.11		0.08	−0.06	0.03	0.15	0.08
7. Progress ^b	2.64	1.42	0.53			−0.28	0.23	−0.05	0.14	0.27	0.08		−0.11	0.08	−0.01	0.07
8. Detachment	3.36	1.25	0.48	0.91	0.99	−0.06	−0.46	−0.20	−0.16	−0.41	−0.19	−0.11		0.65	0.34	0.42
9. Relaxation	3.05	1.08	0.26	0.92	0.95	−0.03	−0.19	−0.04	−0.06	−0.17	−0.03	0.08	0.47		0.24	0.51
10. Autonomy	2.80	1.05	0.48	0.83	0.97	−0.07	−0.02	0.01	−0.05	−0.02	0.11	−0.01	0.23	0.08		0.37
11. Mastery experiences	3.64	1.03	0.32	0.85	0.96	−0.13	−0.15	−0.04	0.01	−0.18	0.02	0.07	0.38	0.42	0.27

Correlations below the diagonal are week-level correlations for the full sample (n = 575), and correlations above the diagonal are week-level correlations for the focal sample (n = 215). M = mean; Correlations in bold face are significant at p < 0.05; SD = standard deviation; ICC = intra-class correlation; α_{Level 1} = Multilevel alpha at the intraindividual level; α_{Level 2} = Multilevel alpha at the interindividual level; SW = supplemental work; ^a 0 male; 1 female; ^b n = 215.