Table 1 Ecological validity and thought characteristics in Study 1 and 2.

	Study 1			Study 2			Study 1–Study 2 differences
	Mean	SD	Median	Mean	SD	Median	Significance test	P-value
Experience of the task
Thought censorship	0.27	0.20	0.25	0.40	0.27	0.40	t = − 2.43	0.012*
Similarity to everyday life	0.69	0.23	0.68	0.74	0.19	0.75	W = 608.50	0.40
Thought characteristics
Total word count	1215.67	395.32	1161	1284.73	356.40	1246	t = − 0.76	0.45
Total # of thoughts	28.48	15.18	24	29.35	13.68	30	t = − 0.25	0.80
Total # of strong transitions	20.19	15.84	17	20.02	12.66	18	W = 659	0.76
Total # of associative transitions	7.22	3.77	8	8.31	5.36	7	t = − 1.05	0.30
MNW_{all thoughts}	60.13	47.96	47.12	60.31	51.16	44.41	W = 705	0.87
MNW_{positive thoughts}	69.46	59.61	51.39	60.19	42.28	42.10	W = 593	0.70
MNW_{negative thoughts}	68.30	51	43.40	69.20	60.74	46.75	W = 691	0.98

Statistical differences between Study 1 and 2 were evaluated with a two-tailed Welch t-test for normally distributed variables and a Wilcoxon rank-sum test for non-normally distributed variables. The scale of the thought censorship and similarity to everyday life questions is ‘0-Not at all’ to ‘1-Extremely’. MNW Mean Number of Words. Highlighted in bold are statistically significant group comparisons at p < .05. *P < 0.05.

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