Table 2.

Comparison analyses on outcomes from baseline to follow-up with expectation-maximisation algorithm applied

	Baseline		Follow-up		Comparison Statistic		Effect size
	(n = 70)		(n = 70)
	M	SD	M	SD	t or W	p	d or r
HF MPS-45
Self-oriented	78.73	13.77	72.06	13.85	t = 4.938	p < .001	d = −0.48
Socially-prescribed	56.80	14.76	51.19	12.89	t = 3.715	p < .001	d = 0.40
Other-oriented	53.76	12.62	51.31	12.90	t = 1.796	p = .077	d = 0.19
Rejection sensitivity	11.35	4.41	9.68	4.57	t = 5.412	p < .001	d = 0.37
BSI-53
Depression (Mdn, IQR)	1.00	1.54	0.83	0.88	W = −3.739	p < .001	r = −0.47
Anxiety (Mdn, IQR)	0.83	1.67	0.62	0.88	W = −2.582	p = .010	r = −0.33
Hostility (Mdn, IQR)	0.60	1.00	0.29	0.60	W = −4.163	p < .001	r = 0.53
Perceived social support (Mdn, IQR)	5.79	1.58	5.92	1.32	W = −2.270	p = .023	r = −0.29
Objective social support	2.29	0.66	2.02	1.03	t = 2.287	p = .025	d = 0.31

HF MPS-45 = Hewitt and Flett Multidimensional Perfectionism Scale-45. BSI-53 = Brief Symptom Inventory-53. CERQ = Cognitive Emotion Regulation Questionnaire