Clinical trial NCT04843228: Cognitive Bias Modification for Perfectionism and Intolerance to Uncertainty
Official title: Combined Cognitive Bias Modification for Perfectionism and Intolerance to Uncertainty: A Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Perfectionism
Intolerance to Uncertainty
Lead sponsor: Istanbul Sabahattin Zaim University
Sponsor class: OTHER
First posted: 2021-04-13
Enrollment: 54
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Condition 1: Cognitive Bias Modification for active group

Condition 2: Cognitive Bias Modification for control group
Primary purpose: PREVENTION

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.

Eligibility criteria: 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

Primary outcomes:
measure: Change in Brief Symptom Measure
timeFrame: Weeks 0, 4, 8
Secondary outcomes:
measure: Change in Interpretation bias for perfectionism
timeFrame: Weeks 0, 4
measure: Change in Interpretation bias for intolerance to uncertainty
timeFrame: Weeks 0, 4
measure: Change in Frost Multidimensional Perfectionism Scale
timeFrame: Weeks 0, 4, 8
measure: Change in Intolerance of Uncertainty Scale
timeFrame: Weeks 0, 4, 8
measure: Change in Cognitive-Behavioral Avoidance Scale
timeFrame: Weeks 0, 4, 8
Other outcomes:
Locations:
city: Lowell
country: United States
facility: University of Massachusetts Lowell
state: Massachusetts
Study officials:
References: