Editorial Perspective: Speaking up for developmental language disorder - the top 10 priorities for research.

Developmental language disorder (DLD) is one of the most common neurodevelopmental conditions, yet is chronically underserved, with far fewer children receiving clinical services than expected from prevalence estimates, and very little research attention relative to other neurodevelopmental conditions of similar prevalence and severity. This editorial describes a research priority-setting exercise undertaken by the Royal College of Speech and Language Therapists, which aims to redress this imbalance. From consultations with researchers, practitioners and individuals with lived experience, 10 research priorities emerge. Our goal is to share these priorities with the wider research community, to raise awareness and encourage research collaboration to improve outcomes for young people with DLD.

Involving Individuals with Developmental Language Disorder and their Parents/Carers in Research Priority Setting.

A protocol for involving individuals presenting with developmental language disorder (DLD) (iDLD) and their parents/carers (iDLDPC) in a research priority setting exercise is presented. iDLD have difficulties with communication skills, such as understanding language, word-finding and discourse. Such difficulties mean existing research priority setting protocols are difficult for iDLD to access, since they require sophisticated communication skills. Thus, a novel protocol for involving iDLD in these exercises is warranted. The same protocol is recommended for use with iDLDPC, to ensure accessibility. The protocol is presented in 4 steps. Step 1 describes a program of activities delivered by trained, specialist DLD speech and language therapists (SLTs) that prepares iDLD/iDLDPC for involvement. Step 2 outlines an approach to elicit iDLD/iDLDPC's opinions on research priorities. Steps 3 and 4 describe methods to analyze and integrate this data at multiple stages of the research priority setting process. 9 trained specialist DLD SLTs delivered steps 1 and 2. 17 iDLDs and 25 iDLDPCs consented to involvement. Opinions from all participants were elicited, and this data was used to influence the process and output of the exercise. An advantage of this protocol is its accommodation of the heterogeneity in support needs of iDLD/iDLDPC, through a menu of options, whilst also providing a structured framework. Due to the novelty of the protocol, the methods for data integration were developed by the research group. These are potential limitations of the protocol, and may bring the reliability and validity under scrutiny, which are yet to be tested. This protocol enables meaningful involvement of iDLD/iDLDPC in research priority setting and could be utilized for people with other kinds of speech, language or communication needs. Further research should evaluate the effectiveness of the protocol and whether it can be adapted for involvement of such populations in other research studies.