Inquisit Test Variants

Jumping To Conclusion (JTC) Beads Task - English

This implements the Jumping To Conclusions (JTC) Beads Task created by Phillips & Edwards (1966) and as described in Garety et al (1991).

(Requires Inquisit Lab to run on your computer)
Run Demo
(See how the test runs with Inquisit Web)
User Manual Sample Data Last Updated: Mar 24, 2021, 4:40PM


Find peer-reviewed, published research using the Inquisit Jumping To Conclusions (JTC) Beads Task

Phillips, L. D. & Edwards, W. (1966). Conservatism in a simple probability inference task. Journal of Experimental Psychology, 72(3), 346-354.

Garety, P. A., Hemsley, D. R. & Wessely, S. (1991). Reasoning in deluded schizophrenic and paranoid patients : Biases in performance on a probabilistic inference task. Journal of Nervous and Mental Disease, 179, 194-201.

Lincoln, T. M., Lange, J., Burau, J., Exner, C., & Moritz, S. (January 01, 2010). The effect of state anxiety on paranoid ideation and jumping to conclusions. An experimental investigation. Schizophrenia Bulletin, 36, 6, 1140-8.

Evans, S., Almahdi, B., Sultan, P., Sohanpal, I., Brandner, B., Collier, T., Shergill, S. S., ... Averbeck, B. B. (January 01, 2012). Performance on a probabilistic inference task in healthy subjects receiving ketamine compared with patients with schizophrenia. Journal of Psychopharmacology (oxford, England), 26, 9, 1211-7.

So, S. H., Peters, E. R., Swendsen, J., Garety, P. A., & Kapur, S. (January 01, 2014). Changes in delusions in the early phase of antipsychotic treatment - an experience sampling study. Psychiatry Research, 215, 3, 568-73.