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Cognitive Bias Modification for Perfectionism and Intolerance to Uncertainty

Combined Cognitive Bias Modification for Perfectionism and Intolerance to Uncertainty: A Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04843228
Enrollment
54
Registered
2021-04-13
Start date
2021-03-01
Completion date
2021-07-15
Last updated
2022-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intolerance to Uncertainty, Perfectionism

Brief summary

This study will examine the impact of cognitive bias modification (CBM) on perfectionism and intolerance to uncertainty. Undergraduate students will be recruited and randomly assigned to either experimental or placebo-control groups. Each group will attend four sessions of CBM over four weeks.

Detailed description

Background. Cognitive bias modification (CBM) is an intervention aiming to systematically change the biases in cognitive processing using experimental paradigms. CBM was found effective with a variety of disorders and transdiagnostic variables. Although there are few studies focusing on transdiagnostic variables like perfectionism and intolerance to uncertainty, further research needs to be done for the generalizability of these results. It was aimed in this study to test the effectiveness of CBM for perfectionism and intolerance to uncertainty with a sample of undergraduate students in Turkey. Sample size was determined using G\*power for a medium to large effect size based on previous studies and it was planned to include 28 undergraduate students who have a score of \>70.5 in the Brief Symptom Measure in the study. Participants will get either 3-course credits or a 100 TL bookstore gift card for their full participation. After getting informed consent from participants, they will be randomized to either active or control condition. Participants will be blind to their intervention condition. Following randomization, baseline measurements will be collected. After the baseline measures were collected, links for interventions will be e-mailed to the participants according to their assigned group. Participants will get an email including the link for the study every week. Interpretation bias scores of participants for perfectionism and intolerance to uncertainty will be collected before the first intervention session and after the last intervention session. These sessions will last approximately 25 min. Participants will attend the session without an assessment in the second and third week and these sessions will last approximately 15 min. After four sessions, post-tests will be sent to the participants. Questionnaires will also be collected one month after the intervention was done.

Interventions

There will be four sessions of CBM. Each session will consist of two different part. The first part of the intervention will be the training based on the ambiguous scenario paradigm for perfectionism developed by Dodd (2019). Participants will need to complete word fragments in the last part of the scenario to resolve the ambiguity of the scenario. Then, a comprehension question will be presented to them to underscore the interpretation condition. Feedback will be given after each question. For the second part of the intervention aimed to intervene intolerance to uncertainty, word sentence association paradigm for intolerance to uncertainty developed by Oglesby (2017) will be used. In this intervention, participants will be asked to judge the relatedness of words and sentences which will be presented to them. Feedback will be given after each word-sentence.

BEHAVIORALCognitive Bias Modification for Control Group

For the first part of the intervention, the control group will be presented with the same procedures as the active group; however, feedbacks will be given to resolve the scenarios in a neutral way. When it comes to the second part of the intervention, different word-sentence pairings will be presented to the control group.

Sponsors

Istanbul Sabahattin Zaim University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Caregiver)

Masking description

Participants will be blinded to their assigned condition. They will have ID numbers created by random.org which will allow the care provider to be blinded to the assigned conditions of participants.

Intervention model description

Condition 1: Cognitive Bias Modification for active group Condition 2: Cognitive Bias Modification for control group

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Older than 18 years old * Have a score of \>70.5 in Brief Symptom Measure * Being an undergraduate student * Fluent in Turkish * Access to the internet by computer

Exclusion criteria

* Having any psychiatric disorder * Receiving a psychiatric/psychological treatment

Design outcomes

Primary

MeasureTime frameDescription
Change in Brief Symptom MeasureWeeks 0, 4, 8Psychiatric symptomatology will be assessed with Brief Symptom Measure consists of 25 items scored 1-7. Greater score means greater severity.

Secondary

MeasureTime frameDescription
Change in Interpretation bias for perfectionismWeeks 0, 4Participants will read ten scenarios and rate the relatedness of four sentences for each scenario.
Change in Interpretation bias for intolerance to uncertaintyWeeks 0, 4Participants will judge the relatedness of word-sentence pairings. 40 pairings will be presented and each participant will have a score between 0 and 1. A score closer to 0 indicates severity of interpretation bias for intolerance to uncertainty.
Change in Frost Multidimensional Perfectionism ScaleWeeks 0, 4, 8Self-report questionnaire of perfectionism consists of 35 items on a 5-point scale. Higher score means greater perfectionism.
Change in Intolerance of Uncertainty ScaleWeeks 0, 4, 8Self-report questionnaire of intolerance to uncertainty consists of 26 items on a 5-point scale. Higher score means greater intolerance to uncertainty.
Change in Cognitive-Behavioral Avoidance ScaleWeeks 0, 4, 8Self-report questionnaire of cognitive-behavioral avoidance consists of 31 items on a 5-point scale. Higher score means greater cognitive-behavioral avoidance.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026