Table 3.

Paired t test and within group effect size at post-intervention

Item	Treatment as usual group		Unified protocol group
	t(34)	p	t(34)	p	Cohens’d [95%CI]
Anxiety	1.95	.062	10.54	p < .001	− 2.78 [− 3.67, − 2.01]
Depression	− .46	.643	7.83	p < .001	− 2.01 [− 2.78, − 1.35]
Emotion difficulties	− 2.01	.052	3.07	p < .01	− 0.20 [− 0.66, − 0.14]
Positive affect	1.98	.055	− 7.01	p < .001	1.44 [0.86, 2.08]
Negative affect	− .98	.327	8.26	p < .001	− 1.95 [− 2.65, − 1.31]
Worry	.65	.512	6.89	p < .001	− 1.45 [− 2.02, − 0.92]

Time2–Time1 post-treatment to baseline, CI confidence interval of the difference