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RecruitingNCT06057740Updated Sep 28, 2023

ACT and CBT Bibliotherapy for Perfectionism

An interventional study of Acceptance and commitment therapy (ACT) and Cognitive behavioral therapy (CBT) in Perfectionism, sponsored by Utah State University. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-09-28.

Sponsored by Utah State University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Sep 2025, 1 year 2 months ago, but the record still lists the study as recruiting.
  • Started Sep 2023; still recruiting 3 years 1 month later.
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical trial is to test self-help books for adults with perfectionism. The main questions it aims to answer are:

  1. Are the self-help books (ACT and CBT) effective, compared to a waitlist control condition?
  2. What are the processes of change for perfectionism in ACT vs. CBT bibliotherapy?
  3. Do the self-help books (ACT and CBT) affect change in general distress, well-being, and affect?
  4. Is bibliotherapy an acceptable and feasible intervention for perfectionism?

Participants will be randomized into either the ACT self-help condition, CBT self-help condition, or waitlist control condition:

  1. Participants in both intervention conditions will be asked to read the respective self-help book over the course of 10 weeks and complete 4 surveys over 3.5 months.
  2. Participants in the waitlist condition will be asked to complete 4 surveys over 3.5 months, and will receive access to both self-help books once the study is complete.
Read the detailed description

Perfectionism is a multidimensional construct where individuals develop unrealistically high standards and attribute self-value to meeting these expectations. Perfectionism has also been shown to be a risk and a maintenance factor for a range of psychological difficulties such as depression, social anxiety, eating disorders, and obsessive-compulsive related disorders (Limburg et al., 2017). Furthermore, the prevalence of perfectionism is increasing in undergraduate students according to a recent meta-analysis (Curran \& Hill, 2019), highlighting the need to expand accessible treatment options. Acceptance and Commitment Therapy (ACT) and Cognitive Behavioral Therapy (CBT) have both demonstrated clinical effectiveness in targeting unhelpful perfectionism, but it is unclear how effective these psychotherapies are at decreasing perfectionism when applied in a bibliotherapy format.

The present study aims to assess the feasibility and efficacy of ACT and CBT self-help books for perfectionism over a 10-week intervention period and one month follow-up assessment, in comparison to a waitlist control condition. Additionally, this study will examine the impact of bibliotherapies on processes of change (i.e., psychological acceptance and cognitive reappraisal) as well as general distress, well-being, and affect. Participants will be adult students recruited from two universities in the mountain and midwestern regions of the United States and participants will complete self-report assessments at pre-, mid-, post-intervention, and follow-up. For the primary aim evaluating efficacy, we predict both ACT (The Anxious Perfectionist) and CBT (When Perfect Isn't Good Enough by Martin Antony) self-help books will decrease unhelpful perfectionism from pre-intervention to follow-up, in comparison to a waitlist control group. For the secondary aim evaluating processes of change, we predict that (1) ACT will increase psychological flexibility more than CBT, and (2) CBT will increase cognitive reappraisal more than ACT, from pre-intervention to follow-up. For our third aim evaluating changes in distress, well-being, and affect, we predict that (1) both ACT and CBT will decrease distress and general negative affect, and (2) ACT will outperform CBT on increases in well-being and general positive affect from pre-treatment to follow-up. For our fourth aim assessing bibliotherapy acceptability and feasibility, we predict no differences between adherence and satisfaction ratings between the ACT and CBT reading conditions.

02

Conditions studied

  • Perfectionism

Keywords

  • Acceptance and commitment therapy (ACT)
  • Cognitive behavioral therapy (CBT)
  • Bibliotherapy
03

In context

Lead sponsor

Utah State University is the lead sponsor of 39 studies on the registry; 5 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • an adult (18 years and older) student at the university
  • the ability to understand and read English
  • access to the university's online library resources
  • endorse high perfectionism (29 or more on the concerns over mistakes Frost Multidimensional Perfectionism Subscale)

Exclusion criteria

Exclusion Criteria:

  • N/A
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
120 participants (estimated)

Study arms

  • Experimental
    ACT Bibliotherapy

    Participants will read 10 chapters (140 pages) of The Anxious Perfectionist by Clarissa Ong and Michael Twohig over the course of 10 weeks.

    Behavioral: Acceptance and commitment therapy (ACT)

  • Experimental
    CBT Bibliotherapy

    Participants will read 8 chapters (149 pages) of When Perfect Isn't Good Enough by Martin Antony over the course of 10 weeks.

    Behavioral: Cognitive behavioral therapy (CBT)

  • No intervention
    Waitlist Control

    Waitlist condition; assessment only

Interventions

  • BehavioralAcceptance and commitment therapy (ACT)

    ACT is a psychological intervention that aims to improve psychological flexibility, the ability to hold thoughts and emotions lightly in a given context and pursue valued ends (Hayes et al., 1999; Twohig \& Levin, 2017).

  • BehavioralCognitive behavioral therapy (CBT)

    CBT is a psychological intervention which targets cognitions and behaviors in attempt to change emotions.

06

What researchers measure

Primary outcomes

  1. Frost Multidimensional Perfectionism Scale-Brief (FMPS-Brief)

    The Frost Multidimensional Perfectionism Scale-Brief (FMPS-Brief) is an 8-item self-report measure assessing perfectionism with two sub-scales: evaluative concerns and striving. Total scores range from 8 to 40, where higher scores indicate higher perfectionism.

    Time frame: 14 weeks

Secondary outcomes

  1. Acceptance and Action Questionnaire 3 (AAQ-3)

    The Acceptance and Action Questionnaire 3 (AAQ-3) is a 7-item self-report measure assessing psychological inflexibility. Total AAQ-3 scores range from 7 to 49, where higher scores indicate greater psychological inflexibility.

    Time frame: 14 weeks

  2. Emotion Regulation Questionnaire - Cognitive Reappraisal Subscale (ERQ-CR)

    The Emotion Regulation Questionnaire - Cognitive Reappraisal Subscale (ERQ-CR) a 5-item self-report measure assessing use of cognitive reappraisal as an emotional regulation strategy. Total ERQ-CR scores are averaged and range from 0 to 7, with higher scores indicating greater use of cognitive reappraisal.

    Time frame: 14 weeks

  3. Depression Anxiety Stress Scale (DASS-21)

    The Depression Anxiety Stress Scale (DASS-21) is a 21-item self-report measure that assess general distress with three sub-scales: depression, anxiety, and stress. Sum scores are calculated by adding the subscale items and multiplying by two, so total scores range from 0 to 120, with higher scores indicating more distress.

    Time frame: 14 weeks

  4. Mental Health Continuum-Short Form (MHC-SF)

    The Mental Health Continuum-Short Form (MHC-SF) is a 14-item self-report measure assessing emotional, social, and psychological well-being. Total scores range from 0 to 70 where high score indicate greater levels of positive well-being.

    Time frame: 14 weeks

  5. Positive and Negative Affect Schedule (PANAS)

    The Positive and Negative Affect Schedule (PANAS) is a 20-item self-report measure assessing state affect with 10 positive affect (e.g., attentive, active, alert, excited, enthusiastic, determined, inspired, proud, interested, and strong) and 10 negative affect (e.g., hostile, irritable, ashamed, guilty, distressed, upset, scared, afraid, jittery, nervous) items. Total scores are calculated separately for positive and negative affect subscales, both range from 10 to 50 where higher scores indicate higher affect.

    Time frame: 14 weeks

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06057740
Lead sponsor
Utah State University
Responsible party
Sponsor
First posted
Sep 28, 2023
Start date
Sep 12, 2023
Primary completion
Sep 1, 2025 (estimated)
Completion
Sep 1, 2025 (estimated)
Last update
Sep 28, 2023

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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