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Effect of Psychotherapy on Intolerance of Uncertainty : A Systematic Review and Meta-Analysis

Näsling, John ; Åström, Elisabeth ; Jacobsson, Lars LU orcid and Ljungberg, Jessica K (2024) In Clinical Psychology and Psychotherapy 31(4).
Abstract

Intolerance of uncertainty (IU) is the tendency to react negatively on affective, cognitive and behavioural levels to uncertain situations and to harbour negative beliefs about the implications of uncertainty. IU has been linked to psychopathology and shown to impact treatment outcomes. This study systematically reviewed the literature and performed a meta-analysis of the effects of psychotherapy on IU. A total of 22 studies (1491 participants) were identified in online searches and included in the meta-analyses. Analyses were performed on studies with passive and active control conditions. The pooled effect on IU from studies with passive control was large (g = −0.94 [95% CI −1.25 to −0.62]) but with significant heterogeneity. Pooled... (More)

Intolerance of uncertainty (IU) is the tendency to react negatively on affective, cognitive and behavioural levels to uncertain situations and to harbour negative beliefs about the implications of uncertainty. IU has been linked to psychopathology and shown to impact treatment outcomes. This study systematically reviewed the literature and performed a meta-analysis of the effects of psychotherapy on IU. A total of 22 studies (1491 participants) were identified in online searches and included in the meta-analyses. Analyses were performed on studies with passive and active control conditions. The pooled effect on IU from studies with passive control was large (g = −0.94 [95% CI −1.25 to −0.62]) but with significant heterogeneity. Pooled effects on IU from studies with active controls were not significant. Moderator analysis showed that among studies with a passive control condition, studies that recruited participants from clinical care facilities produced smaller effect sizes. Among studies with an active control condition, study quality significantly moderated the results, with higher quality leading to a larger effect size. These results indicate that changes in IU may be difficult to reliably achieve in psychotherapy and leave many questions about the effect of psychotherapy on IU unanswered, such as what active components produced the observed changes in studies with passive control.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
intolerance of uncertainty, meta-analysis, psychotherapy, transdiagnostic treatment
in
Clinical Psychology and Psychotherapy
volume
31
issue
4
article number
e3026
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85199190174
  • pmid:39036833
ISSN
1063-3995
DOI
10.1002/cpp.3026
language
English
LU publication?
yes
id
6f89a083-a394-4130-be52-e5a545eb2eb5
date added to LUP
2024-10-02 13:45:50
date last changed
2025-06-12 12:08:51
@article{6f89a083-a394-4130-be52-e5a545eb2eb5,
  abstract     = {{<p>Intolerance of uncertainty (IU) is the tendency to react negatively on affective, cognitive and behavioural levels to uncertain situations and to harbour negative beliefs about the implications of uncertainty. IU has been linked to psychopathology and shown to impact treatment outcomes. This study systematically reviewed the literature and performed a meta-analysis of the effects of psychotherapy on IU. A total of 22 studies (1491 participants) were identified in online searches and included in the meta-analyses. Analyses were performed on studies with passive and active control conditions. The pooled effect on IU from studies with passive control was large (g = −0.94 [95% CI −1.25 to −0.62]) but with significant heterogeneity. Pooled effects on IU from studies with active controls were not significant. Moderator analysis showed that among studies with a passive control condition, studies that recruited participants from clinical care facilities produced smaller effect sizes. Among studies with an active control condition, study quality significantly moderated the results, with higher quality leading to a larger effect size. These results indicate that changes in IU may be difficult to reliably achieve in psychotherapy and leave many questions about the effect of psychotherapy on IU unanswered, such as what active components produced the observed changes in studies with passive control.</p>}},
  author       = {{Näsling, John and Åström, Elisabeth and Jacobsson, Lars and Ljungberg, Jessica K}},
  issn         = {{1063-3995}},
  keywords     = {{intolerance of uncertainty; meta-analysis; psychotherapy; transdiagnostic treatment}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Clinical Psychology and Psychotherapy}},
  title        = {{Effect of Psychotherapy on Intolerance of Uncertainty : A Systematic Review and Meta-Analysis}},
  url          = {{http://dx.doi.org/10.1002/cpp.3026}},
  doi          = {{10.1002/cpp.3026}},
  volume       = {{31}},
  year         = {{2024}},
}