Table 3.

Pearson product-moment correlation coefficients (r: all above diagonal) and Spearman rank correlations (ρ: all below diagonal), their associated p values, the number of animals (N) and Bayes factors (BF). A) Study 1; B) Study 2; C) Study 3. Correlations printed in bold italics have associated probabilities <0.05. Correlations printed in italics have associated probabilities 0.05 < p < 0.10. Bayes factors <0.33 (providing at least substantial evidence for HA; Wetzels and Wagenmakers 2012) or >3 (providing at least substantial evidence for H ₀; Wetzels and Wagenmakers 2012) are printed in bold italics

		HBT RM Mean	HBT RM Slope	HBT WM Mean	HBT WM Slope	JBT Sess. to crit.	JBT % opt. choices
A
HBT RM Mean	r	–	0.957	0.661	0.085	0.072	0.344
	P<	–	<0.001	0.005	0.755	0.798	0.210
	N	–	16	16	16	15	15
	BF	–	<0.001	0.093	3.096	3.052	1.540
HBT RM Slope	r		–	0.687	0.260	0.037	0.446
	P<		–	0.003	0.331	0.895	0.096
	N		–	16	16	15	15
	BF		–	0.065	2.136	3.097	0.853
HBT WM Mean	r			–	0.309	−0.099	0.329
	P<			–	0.244	0.725	0.232
	N			–	16	15	15
	BF			–	1.712	2.970	1.622
HBT WM Slope	r				–	0.013	0.291
	P<				–	0.963	0.293
	N				–	15	15
	BF				–	3.140	1.896
JBT Sess. to crit.	r					–	0.300
	P<					–	0.278
	N					–	15
	BF					–	1.830
JBT % opt. choices	r						–
	P<						–
	N						–
	BF						–

B*
HBT RM Mean	r	–	0.834	0.308	0.237	0.018	−0.040
	P<	–	<0.001	0.064	0.157	0.917	0.813
	N	–	37	37	37	37	37
	BF	–	<0.001	0.932	1.867	4.861	4.756
HBT RM Slope	r	0.830	–	0.258	0.266	0.175	0.023
	P<	<0.001	–	0.124	0.111	0.300	0.895
	N	37	–	37	37	37	37
	BF	–	–	1.563	1.440	2.915	4.845
HBT WM Mean	r	0.358	0.295	–	−0.233	0.024	0.042
	P<	0.030	0.076	–	0.164	0.889	0.805
	N	37	37	–	37	37	37
	BF	–	–	–	1.926	4.841	4.746
HBT WM Slope	r	0.174	0.231	−0.288	–	0.412	0.052
	P<	0.304	0.168	0.084	–	0.011	0.762
	N	37	37	37	–	37	37
	BF	–	–	–	–	0.223	4.675
JBT Sess. to crit.	r	−0.003	0.170	0.033	0.405	–	0.076
	P<	0.987	0.316	0.845	0.013	–	0.656
	N	37	37	37	37	–	37
	BF	–	–	–	–	–	4.442
JBT % opt. choices	r	−0.088	−0.073	0.108	0.026	0.023	–
	P<	0.604	0.667	0.524	0.878	0.892	–
	N	37	37	37	37	37	–
	BF	–	–	–	–	–	–

C
HBT RM Mean	r	–	0.750	0.458	0.008	−0.187	0.005
	P<	–	<0.001	0.042	0.973	0.459	0.985
	N	–	20	20	20	18	18
	BF	–	0.004	0.524	3.611	2.658	3.432
HBT RM Slope	r		–	0.564	−0.079	0.120	0.189
	P<		–	0.010	0.741	0.637	0.451
	N		–	20	20	18	18
	BF		–	0.158	3.433	3.094	2.636
HBT WM Mean	r			–	−0.095	0.054	−0.080
	P<			–	0.689	0.830	0.751
	N			–	20	18	18
	BF			–	3.352	3.360	3.275
HBT WM Slope	r				–	0.073	−0.426
	P<				–	0.772	0.078
	N				–	18	18
	BF				–	3.301	0.811
JBT Sess. to crit.	r					–	0.354
	P<					–	0.149
	N					–	18
	BF					–	1.304
JBT % opt. choices	r						–
	P<						–
	N						–
	BF						–

Note that the product-moment correlations and the rank correlations are highly similar

HBT holeboard task, JBT judgement bias task, RM reference memory, WM working memory, sess. to crit. sessions to criterion, % opt. choices percentage optimistic choices

* The JBT % optimistic choices in study 2 (panel B) were not normally distributed (Shapiro Wilk test: p = 0.0032). Therefore, below diagonal, the Spearman rank correlations (ρ) are shown