Using an objective computer task (QbTest) to aid the identification of attention deficit hyperactivity disorder (ADHD) in the Children and Young People Secure Estate (CYPSE): a feasibility randomised controlled trial.

OBJECTIVES: QbTest has been shown to improve time to decision/diagnosis for young people with attention deficit hyperactivity disorder (ADHD). The aim was to assess the feasibility of QbTest for young people in prison. DESIGN: Single-centre feasibility randomised controlled trial (RCT), with 1:1 allocation. Concealed random allocation using an online pseudorandom list with random permuted blocks of varying sizes. SETTING: One Young Offenders Institution in England. PARTICIPANTS: 355 young people aged 15-18 years displaying possible symptoms of ADHD were assessed for eligibility, 69 were eligible to take part and 60 were randomised. INTERVENTION: QbTest-a computer task measuring attention, activity and impulsivity. MAIN OUTCOME MEASURES: Eligibility, recruitment and retention rates and acceptability of randomisation and trial participation. RESULTS: Of the 355 young people assessed for eligibility, 69 were eligible and 60 were randomised (n=30 QbTest plus usual care; n=30 usual care alone). The study achieved the specified recruitment target. Trial participation and randomisation were deemed acceptable by the majority of participants. 78% of young people were followed up at 3 months, but only 32% at 6 months, although this was also affected by COVID-19 restrictions. Secondary outcomes were mixed. Participants including clinical staff were mostly supportive of the study and QbTest; however, some young people found QbTest hard and there were issues with implementation of the ADHD care pathway. There were no serious adverse events secondary to the study or intervention and no one was withdrawn from the study due to an adverse event. CONCLUSIONS: With adaptations, a fully powered RCT may be achievable to evaluate the effectiveness of QbTest in the assessment of ADHD in the Children and Young People Secure Estate, with time to decision (days) as the primary outcome measure. However, further programme developmental work is required to address some of the challenges highlighted prior to a larger trial. TRIAL REGISTRATION NUMBER: ISRCTN17402196.

Biasability and reliability of expert forensic document examiners.

The performance of experts can be characterized in terms of biasability and reliability of their judgments. The current research is the first to explore the judgments of practicing forensic document experts, professionals who examine and compare disputed handwritten evidence to handwriting exemplars of individuals involved in criminal or civil litigation. Forensic handwriting experts determine if questioned and known handwritten items are of common authorship or written by different individuals, and present their findings in legal proceedings. The expert participants in our study (N=25) were not aware that they were part of a research study. Thirteen participants were led to believe that they were working on a case commissioned from the prosecution and the other twelve that it was for the defense. We did not find evidence in this study that this information biased their judgments, which may make sense since document examiners (in contrast to many other forensic domains) do not primarily work within an organizational forensic laboratory culture. The lack of bias in our findings may have been also due to the stimuli we used or/and the great variability in the judgments within each group, reflecting a lack of consistency in conclusions among examiners. A detailed discussion of our findings is presented along with the limitations that may have affected our results.

FACT: a randomised controlled trial to assess the feasibility of QbTest in the assessment process of attention deficit hyperactivity disorder (ADHD) for young people in prison-a feasibility trial protocol.

INTRODUCTION: The prevalence of attention deficit hyperactivity disorder (ADHD) within the Children and Young People Secure Estate (CYPSE) is much higher than seen in the general population. To make a diagnosis of ADHD, clinicians draw on information from multiple sources, including parents and teachers. However, obtaining these is particularly difficult for young people in the secure estate. There is increasing evidence in the community that QbTest is able to assist in the accurate and earlier diagnosis of ADHD. The objective of this study is to assess the feasibility and acceptability of QbTest in the assessment of ADHD within the CYPSE. METHODS AND ANALYSIS: A single-centre parallel group feasibility randomised controlled trial will be conducted. Sixty young people within the CYPSE identified as displaying possible symptoms of ADHD will be randomised to the intervention arm (n=30; QbTest plus usual care) or control arm (n=30; usual care). Primary analyses will be descriptive and a process evaluation will be conducted to assess the contexts involved in implementing the intervention. Interviews will be conducted to explore acceptability and thematic analysis will be used to analyse the data. ETHICS AND DISSEMINATION: This study was approved by National Health Service Wales research ethics committee 3 (18/WA/0347) on 15 February 2019. The findings will be published in peer-reviewed journals, presented at relevant conferences and disseminated to the public via summaries cocreated with our patient and public involvement group. TRIAL REGISTRATION NUMBER: ISRCTN17402196.