Table 4.

Outcome analyses, including the effect sizes for and between-group differences in the outcome measures between the baseline (t₀) and 4-week follow-up (t₂) assessments in the complete-cases group.

	Effect size (d)			Between-group differencesa
	iBAb	iMBIc	CAUd		Statistic	Effect size (ηp2)	90% CI	P value
PHQ-9e	–0.53	–0.24	–0.53		F(2,75)=0.31	.008	0.000-0.048	.74 (.99f)
BADSg	0.98	0.44	0.64		F(2,75)=0.27	.007	0.000-0.044	.76 (.52f)
KIMSh	0.24	0.25	–0.18		F(2,75)=1.08	.028	0.000-0.096	.34 (.11f)
DAS-18Bi	−0.87	–0.41	–0.12		F(2,75)=3.62	.088	0.004-0.186	.03j (.008f)
WHOQOLk	0.05	0.18	0		F(2,75)=1.07	.028	0.000-0.095	.35 (.59f)

^aAssessed using analyses of covariance (ANCOVA) with baseline scores as covariates and uncorrected t tests for post-hoc tests.

^biBA: internet-based behavioral activation.

^ciMBI: internet-based mindfulness intervention.

^dCAU: care as usual.

^ePHQ-9: Patient Health Questionnaire-9.

^fIntention-to-treat analyses based on multiple imputation.

^gBADS: Behavioral Activation for Depression Scale.

^hKIMS: Kentucky Inventory of Mindfulness Skills.

ⁱDAS-18B: German 18-item version of the Dysfunctional Attitude Scale form B.

^jiBA>CAU.

^kWHOQOL: World Health Organization Quality of Life Scale (global item).