A Systematic Review on Patient and Public Involvement in Research on Childhood Communication Difficulties.
Zhixing Yang, Quynh Brooke Ho, Ria Bernard and 2 others
Most childhood communication research asks parents for a one-off opinion rather than involving children or sharing decisions.
Of 21 studies, 14 stopped at consultation and only 8 included children at all.
Key findings
1Of the 21 studies reviewed, 14 (66.7%) limited public involvement to consultation—the lowest level—where researchers sought views but kept final decision-making authority with the research team.
2Only 8 of the 21 studies directly involved children and young people with communication difficulties; most relied on parents or caregivers as proxies, and no study met the criteria for user-controlled research.
3Only 2 of the 21 studies provided any financial or material compensation to public contributors, and the review confirmed a recurring pattern of tokenistic involvement where PPI was treated as a box-ticking exercise rather than genuine partnership.
Still to come
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
Only English-language, peer-reviewed publications were included; grey literature (organisational reports, policy documents) was excluded, which may miss PPI activity that is not published in journals. Screening was based on titles and abstracts only, so studies that discuss PPI only in the main text may have been missed. The review used the NIHR (UK) framework to define and assess PPI, which may not capture how involvement is understood or practised in other cultural contexts. PPI contributors were not involved in designing or conducting this review, meaning the review did not benefit from the very input it sought to evaluate. Eight of the included studies assumed speech, language, or hearing diagnoses based on recruitment channels without confirming them, risking sampling bias and misclassification. The narrative synthesis grouped heterogeneous studies (qualitative, quantitative, mixed-method) into broad themes, so the findings describe patterns rather than measurable effects.
Declared interests
The authors state they received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors, and all authors declare no conflict of interest.
The easy way to misread this
Do not read this review as evidence that PPI improves research quality in childhood communication difficulties. The positive effects reported (better materials, easier recruitment, more relevant outcomes) are self-reported by the researchers in the included studies, not independently verified. The review's own central finding is that most of this involvement is shallow, tokenistic, and poorly evaluated, and it found no measurable evidence that PPI changed study outcomes.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →