ALSPAC - Age 24 - Jumping to Conclusions Task (“Beads Task”)
The Avon Longitudinal Study of Parents and Children (ALSPAC) assessed their cohort members (CMs) during the study’s age 24 sweep (Focus at 24) using a measure of Jumping to Conclusions Task (“Beads Task”).
Details on this measure and the data collected from the CMs are outlined in the table below.
| Year of data collection: | 2015-2017 |
| Domain: | Verbal and non-verbal ability |
| Measures: | Executive function (decision making) |
| Data gathering | |
| Cognitive biases in delusions | |
| CHC: | N/A |
| CLOSER Source: | Explore this sweep in CLOSER Discovery: ALSPAC Early Adulthood (19 years – 30 years 11 months) (opens in a new tab) |
| Administration method: | Computer-Assisted Personal interview (CAPI) |
| Procedure: | The Jumping to Conclusions task (also known as the “Beads task”) was a computer-based task which required participants to guess which of two jars a red or blue bead has been drawn from. In each jar there were 100 beads: in the Red jar, there were 80 red beads, and 20 blue beads, in the Blue jar, there were 80 blue beads, and 20 red beads. |
| In the first Jumping to Conclusions task – the Draws to Decision (DTD) task – participants were shown one bead, which was then put back in the jar. Participants could ask to see more beads drawn from the same jar (up to 10 in total), and had to decide which jar the beads were coming from once they were sure about their decision. This task was repeated five times, with the jar for each trial chosen at random. | |
| In the second Jumping to Conclusions task – the Probability Estimation (ProbEst) task – participants were again shown a bead from a jar, which would vary over the course of the task, and asked to rate how sure they were of which jar the beads are coming from. The sliding scale had five broad categories of ‘Red sure’, ‘Red quite sure’, ‘Not sure’, ‘Blue quite sure’, and ‘Blue sure’. In total, 30 beads were displayed for this second task. | |
| Link to questionnaire: | http://www.bristol.ac.uk/alspac/researchers/our-data/clinical-measures/ (opens in a new tab) |
| Scoring: | None available |
| Item-level variable(s): | Not readily available |
| Total score/derived variable(s): | FKJU1000 |
| FKJU1005 | |
| FKJU1010 – FKJU1017 | |
| FKJU1020 | |
| FKJU1025 | |
| FKJU1050 – FKJU1058 | |
| FKJU1060 – FKJU1067 | |
| FKJU1070 – FKJU1075 | |
| Descriptives: | N = 3,525 |
| Age of participants (months): | Mean = 293.81 months, SD = 9.779, Range = 268.5 – 318.5 |
| Other sweep and/or cohort: | None |
| Source: | Garety, P. A., Freeman, D., Jolley, S., Dunn, G., Bebbington, P. E., Fowler, D. G., … & Dudley, R. (2005). Reasoning, emotions, and delusional conviction in psychosis. Journal of abnormal psychology, 114(3), 373. |
| Technical resources: | None |
| Example articles: | So, S,H., Freeman, D., Dunn, G., Kapur, S., Kuipers, E., Bebbington, P., Fowler, D., & Garety, P.A. (2012). Jumping to Conclusions, a Lack of Belief Flexibility and Delusional Conviction in Psychosis. Journal of Abnormal Psychology, 121(1), 129–139.- |
For the named items in the table above, links are provided to their corresponding content on CLOSER Discovery. Where a variable range is provided, full variable lists can be accessed through the ‘Variable Groups’ tab on the linked CLOSER Discovery page.