Cited by 25Digital Mental Health InterventionsAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesPsychological Treatments and Assessments

Skill Enactment and Knowledge Acquisition in Digital Cognitive Behavioral Therapy for Depression and Anxiety: Systematic Review of Randomized Controlled Trials

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Jackson, Hayley M, Calear, Alison L, Batterham, Philip J, Ohan, Jeneva L, Farmer, Glenda M, Farrer, Louise M·2023·Journal of Medical Internet Research

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Abstract

Background: Digital cognitive behavioral therapy (CBT) interventions can effectively prevent and treat depression and anxiety, but engagement with these programs is often low. Although extensive research has evaluated program use as a proxy for engagement, the extent to which users acquire knowledge and enact skills from these programs has been largely overlooked. Objective: This study aimed to investigate how skill enactment and knowledge acquisition have been measured, evaluate postintervention changes in skill enactment and knowledge acquisition, examine whether mental health outcomes are associated with skill enactment or knowledge acquisition, and evaluate predictors of skill enactment and knowledge acquisition. Methods: PubMed, PsycINFO, and Cochrane CENTRAL were searched for randomized controlled trials (RCTs) published between January 2000 and July 2022. We included RCTs comparing digital CBT with any comparison group in adolescents or adults (aged ≥12 years) for anxiety or depression. Eligible studies reported quantitative measures of skill enactment or knowledge acquisition. The methodological quality of the studies was assessed using the Joanna Briggs Institute Critical Appraisal Checklist for RCTs. Narrative synthesis was used to address the review questions. Results: In total, 43 papers were included, of which 29 (67%) reported a skill enactment measure and 15 (35%) reported a knowledge acquisition measure. Skill enactment was typically operationalized as the frequency of enacting skills using the completion of in-program activities (ie, formal skill enactment; 13/29, 45%) and intervention-specific (9/29, 31%) or standardized (8/29, 28%) questionnaires. Knowledge measures included tests of CBT knowledge (6/15, 40%) or mental health literacy (5/15, 33%) and self-report questionnaires (6/15, 40%). In total, 17 studies evaluated postintervention changes in skill enactment or knowledge acquisition, and findings were mostly significant for skill enactment (6/8, 75% of the studies), CBT knowledge (6/6, 100%), and mental health literacy (4/5, 80%). Of the 12 studies that evaluated the association between skill enactment and postintervention mental health outcomes, most reported ≥1 significant positive finding on standardized questionnaires (4/4, 100%), formal skill enactment indicators (5/7, 71%), or intervention-specific questionnaires (1/1, 100%). None of the 4 studies that evaluated the association between knowledge acquisition and primary mental health outcomes reported significant results. A total of 13 studies investigated predictors of skill enactment; only type of guidance and improvements in psychological variables were associated with increased skill enactment in ≥2 analyses. Predictors of knowledge acquisition were evaluated in 2 studies. Conclusions: Digital CBT for depression and anxiety can improve skill enactment and knowledge acquisition. However, only skill enactment appears to be associated with mental health outcomes, which may depend on the type of measure examined. Additional research is needed to understand what types and levels of skill enactment and knowledge acquisition are most relevant for outcomes and identify predictors of these constructs. Trial Registration: PROSPERO CRD42021275270; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=275270

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  • Digital exercises support clients in applying their newly learned skills in daily life, which is essential to facilitate symptom reductions.

    “Digital exercises then support clients in applying their newly learned skills in daily life, which is essential to facilitate symptom reductions [20].”

    From Clinical Effects of Asynchronous Provider-Guided Practice Sessions During Blended Care Therapy for Anxiety and Depression: Pragmatic Retrospective Cohort Study (2024) · cites this paper as [20]

    The Introduction (Skill Enactment and Knowledge Acquisition; page unavailable) describes applying intervention-taught skills in daily life as an important proposed mechanism for improving outcomes. The Results (Review Question 3; page unavailable) report that skill enactment mediated improvements in depressive symptoms in several studies. But the review does not establish that digital exercises themselves are what support daily-life application, or that such application is essential for symptom reduction. (LLM, conf=0.86)

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Authors
Jackson, H. M., Calear, A. L., Batterham, P. J., Ohan, J. L., Farmer, G. M., & Farrer, L. M.
Affiliations
  • Australian National University (AU)
  • The University of Western Australia (AU)
Corresponding author
Jackson, Hayley M
Venue
Journal of Medical Internet Research
Published
2023-05-31
Volume
25
Pages
e44673
ISSN
1438-8871 (ISSN-L)
OpenAlex
W4378783446
Cited by
25
References
125
Citations by year
2026: 8 · 2025: 7 · 2024: 8 · 2023: 2
FWCI
0.84
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Journal of Medical Internet Research (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Australian Government
  • Medical Research Council
  • National Health and Medical Research Council (1173146, 1158707, NHMRC Fellowship 1173146, DE190101382)
Topics
  • Social Sciences › Psychology › Applied Psychology › Digital Mental Health Interventions
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Social Sciences › Psychology › Clinical Psychology › Psychological Treatments and Assessments
Keywords
digital cognitive behavioral therapy, knowledge acquisition, depression, anxiety, mental health literacy, treatment engagement, adolescents, adults, mental health outcomes, digital mental health interventions, predictors of treatment outcome, predictors of treatment dropout
MeSH terms
Adolescent, Adult, Anxiety, Anxiety Disorders, Depression, Humans, Cognitive Behavioral Therapy, Randomized Controlled Trials as Topic

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