The role of pre-existing knowledge and knowledge acquisition in internet-based cognitive-behavioural therapy for eating disorders

Linardon, Jake, Broadbent, Jaclyn, Shatte, Adrian, and Fuller-Tyszkiewicz, Matthew (2022) The role of pre-existing knowledge and knowledge acquisition in internet-based cognitive-behavioural therapy for eating disorders. Computers in Human Behaviour, 134. 107332.

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Knowledge is a relevant concept in internet-based cognitive-behaviour therapy (I-CBT), yet little research has sought to understand the role of knowledge in I-CBT for eating disorders. This study addressed this gap. Data were analysed from 293 participants enrolled in a RCT of I-CBT for eating disorder symptoms. A test assessing knowledge of CBT principles and eating disorders was administered before and after I-CBT. Participants had high knowledge to begin with, correctly answering 72% of items. A significant increase in knowledge scores and knowledge confidence was observed after ICBT. While no relationship between the degree of knowledge gain and the degree of symptom improvement emerged, an increase in confidence in one's knowledge was associated with greater symptom improvement. Higher baseline knowledge levels predicted lower likelihood of drop-out and a higher likelihood of adherence, but were unrelated to symptom-level improvement. Findings suggest that while new knowledge can be acquired through I-CBT, the degree of knowledge gain alone is not sufficient to explain improvement in symptoms. Pre-existing knowledge levels may be an important prognostic indicator of patient progress and compliance to I-CBT. Ensuring that patients can correctly apply the key I-CBT skills may be more important than knowledge gain.

Item ID: 81618
Item Type: Article (Research - C1)
ISSN: 1873-7692
Keywords: I-CBT; Eating disorders; Binge eating disorder; Bulimia nervosa; Knowledge acquisition; Randomized controlled trial
Copyright Information: © 2022 Elsevier Ltd. All rights reserved
Funders: National Health and Medical Research Council of Australia (NHMRC)
Projects and Grants: NHMRC APP1196948
Date Deposited: 30 Jan 2024 23:57
FoR Codes: 46 INFORMATION AND COMPUTING SCIENCES > 4608 Human-centred computing > 460806 Human-computer interaction @ 30%
42 HEALTH SCIENCES > 4203 Health services and systems > 420302 Digital health @ 40%
52 PSYCHOLOGY > 5299 Other psychology > 529999 Other psychology not elsewhere classified @ 30%
SEO Codes: 22 INFORMATION AND COMMUNICATION SERVICES > 2204 Information systems, technologies and services > 220407 Human-computer interaction @ 60%
20 HEALTH > 2004 Public health (excl. specific population health) > 200409 Mental health @ 40%
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