Jumping to Conclusions Is Associated with Paranoia but Not General Suspiciousness: A Comparison of Two Versions of the Probabilistic Reasoning Paradigm

Table 4

Correlation between different parameters on the probabilistic reasoning tasks with the two factors and the total score of the Paranoia Checklist across the two subsamples and the total pooled sample. Means and standard deviations (in brackets).

	Unspecific suspiciousness	Psychotic paranoia	Paranoia Checklist total score
Traditional variant
JTC (1st fish)	−.077*	.221***	.062^+
JTC (1st or 2nd fish)	−.099**	.154***	.006
Draws to decision	.098**	−.136***	.003
Decision threshold in %	—	—	—
Extended variant
JTC (1st fish)	−.025	.142***	.059^+
JTC (1st or 2nd fish)	−.035	.132***	.046
Draws to decision	.012	−.122***	−.059^+
Decision threshold in %	−.014	−.186***	−.119***
Entire sample, both versions pooled
JTC (1st fish)	−.044^+	.177***	.064^(∗∗)
JTC (1st or 2nd fish)	−.063**	.142***	.028
Draws to decision	.054*	−.129***	−.029
Decision threshold in %	—	—	—

Note. JTC: jumping to conclusions.
⁺P ≤ .1, *P ≤ .05, **P ≤ .01, ***P ≤ .001.