TABLE 5.

Subgroup mean comparison—clustered by constructs.

	ZAREKI-R			HRT 1–4
	t-test	Cohen’s d	BF	t-test	Cohen’s d	BF
Intelligence	2.10*	0.48	1.57	2.65*	0.62	3.48
Reading fluency	1.87	0.43	1.07	1.76	0.43	0.93
Working memory	1.20	0.28	0.44	0.67	0.17	0.31
Basic numerical processing	4.66***	1.07	1589.59	0.11	0.03	0.25
Complex number processing	6.06***	1.38	3.28×105	11.00***	2.73	2.15×1013
Calculation	11.16***	2.55	3.19×1015	8.32***	2.06	7.63×108
Attention	3.54***	0.81	43.98	−	−	−

Interpretation of p-values: p < 0.05*, p < 0.01**, p < 0.001*** the significance level was adjusted by the sequentially rejective Bonferroni test to prevent the alpha error from accumulating (Holm, 1979); interpretation of BFs (Wagenmakers et al., 2018): BF < 0.33 (moderate evidence for the null hypothesis), BF < .10 (strong evidence for the null hypothesis), BF < 0.033 (very strong evidence for the null hypothesis), BF > 3 (moderate evidence for the alternative hypothesis), BF > 10 (strong evidence for the alternative hypothesis), BF > 30 (very strong evidence for the alternative hypothesis).