Table 1.

Descriptive statistics and Wilcoxon signed-rank test results along with r effect sizes, comparing Baseline and Measurement 2 (post-training)

Variables		Baseline		Measurement 2		Wilcoxon sign test		r effect size
	N	M	SD	M	SD	Z	P
Time spent using pornography (last week, in min)	6	200.00	235.97	39.00	23.68	−2.20	0.028	−0.64
Time spent on masturbation (last week, in min)	7	5.86	2.80	4.00	3.00	−1.19	0.235	−0.32
Time spent on sexual intercourse (last week, in min)	5	22.40	42.88	3.60	3.58	−0.54	0.593	−0.17
BPS	10	6.00	3.30	4.20	3.46	−1.78	0.075	−0.40
HADS anxiety	8	8.88	5.30	4.63	2.13	−1.87	0.062	−0.47
HADS depression	8	6.25	4.53	3.00	2.07	−2.21	0.027	−0.55
OCI-R	10	15.80	10.49	11.20	9.11	−1.94	0.052	−0.43

Note. BPS – Brief Pornography Screener; OCI-R – Obsessive-Compulsive Inventory Revised; HADS – Hospital Anxiety and Depression Scale; STAI – State-Trait Anxiety Inventory; r effect size was computed using formula Z/√n_x + n_y (Pallant, 2007). Cohen's proposed interpretation of the r effect size strength is as follows: 0.1 – small effect; 0.3 – medium effect; 0.5 – large effect (Cohen, 1988).