Table 1.

Means, Standard Deviations, and Correlations Between Key Variables.

Variable	M	SD	α	1	2	3	4	5	6	7	8	9
1. T1 Adherence	4.45	0.83	―
2. T2 Adherence	4.51	0.79	―	.65***
				[.60, .70]
3. T1 Difficulty	2.61	1.19	.89	−.38***	−.39***
				[−.45, −.31]	[−.46, −.31]
4. T2 Difficulty	2.45	1.17	.90	−.37***	−.39***	.80***
				[−.45, −.29]	[−.47, −.31]	[.76, .83]
5. T1 Diagnosis /	0.10	0.30	―	−.23***	−.18***	.30***	.30***
Quarantine				[−.30, −.15]	[−.27, −.09]	[.22, .37]	[.21, .38]
6. T2 Diagnosis /	0.07	0.26	―	−.18***	−.21***	.31***	.30***	.65***
Quarantine				[−.27, −.09]	[−.30, −.12]	[.22, .39]	[.22, .39]	[.60, .70]
7. Commitment	4.14	0.96	.83	.64***	.60***	−.63***	−.59***	−.30***	−.30***
				[.59, .69]	[.54, .66]	[−.68, −.58]	[−.64, −.52]	[−.37, −.22]	[−.38, −.22]
8. Trait Boredom	2.65	1.10	.93	−.29***	−.27***	.65***	.59***	.32***	.30***	−.53***
(SBPS)				[−.37, −.22]	[−.35, −.18]	[.60, .70]	[.52, .64]	[.24, .39]	[.21, .38]	[−.59, −.47]
9. Trait Self-Control	3.51	0.72	.91	.34***	.28***	−.42***	−.38***	−.18***	−.16***	.41***	−.70***
(CFSCS)				[.27, .41]	[.19, .36]	[−.49, −.35]	[−.46, −.30]	[−.26, −.10]	[−.25, −.07]	[.34, .48]	[−.74, −.65]
10. If-then Planning	3.89	0.62	.79	.29***	.19***	.09*	.05	−.01	.04	.12***	−.09*	.38***
(ITPS)				[.21, .36]	[.10, .28]	[.01, .17]	[−.05, .14]	[−.10, .07]	[−.05, .14]	[.04, .20]	[−.17, −.01]	[.31, .45]

Note. Values in square brackets indicate the 95% confidence intervals. Statistics involving T2 adherence or T2 difficulty are based on N = 451 observations, all other statistics are based on N = 574 observations

^* p < .05. ^*** p < .001