Related Experiment Video
Updated: Jul 5, 2026
The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients
Published on: June 12, 2020
Hasty decision-making in a variety of tasks: does it contribute to the development of delusions?
Michael Ziegler1, Winfried Rief, Sarah-M Werner
1Department of Clinical Psychology and Psychotherapy, Faculty of Psychology, Philipps-University Marburg, Marburg, Germany. michael.ziegler@staff.uni-marburg.de
Objectives:
The finding that persons with delusions tend to jump-to-conclusions ( JTC) in the beads task has often been replicated. This study investigates whether hasty decision-making in the beads task is associated with hasty decisions in tasks with more relevance for everyday decision-making. Furthermore, it is hypothesized that hasty decisions in these tasks will be associated with subclinical delusional beliefs.
Design:
A correlational study.
Methods:
A sample of students (N=85) completed the beads task and three additional non-probabilistic decision-tasks. Subclinical delusional beliefs were assessed using the Peters et al. delusions inventory (PDI; Peters, Joseph, & Garety, 1999).
Results:
In support of the hypothesis, participants with hasty decisions in the beads task also made hasty decisions in two of the other tasks. Hasty decisions were only associated with higher subclinical delusional beliefs in one of the tasks (a letter recognition task).
Conclusions:
Decision-making in the beads task can be generalized to decisions in other contexts. Other decision-making tasks may be more closely related to delusions than the beads task.
Related Concept Videos
01:20Decision Making
Automatic decision-making is fast, intuitive, and relies on gut feelings...
01:37Reason and Intuition
01:26Positive Symptoms Schizophrenia: Hallucinations and Delusions
Hallucinations
Hallucinations in...
01:08The Availability Heuristic
01:14Decision Making: Traditional Method
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
01:30Positive Symptoms of Schizophrenia: Hallucinations and Delusions
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes loosely...