Mr Rhys Mantell

Mr Rhys Mantell

Research Assistant

Master of Public Health (MPH) - UNSW (2020)

Bachelor of Economics - University of Queensland (2016)

Medicine & Health
School of Population Health

Rhys Mantell is a postdoctoral researcher within the Justice Health Research Program (JHRP) at the School of Population Health, UNSW.

His doctoral research, conducted within the NHMRC-funded ASCAPE project, focused on the co-design and evaluation of digital health tools (particularly game-based cognitive assessments; GBCAs) for older people in prison. His current work continues to explore how innovative digital technologies can improve cognitive screening and health outcomes for older adults involved in the justice system, with a strong emphasis on trauma-informed and culturally appropriate design, development and implementation. He was recently the recipient of an RM Gibson Grant (funded by the AAG Research Trust and Dementia Australia) to extend the ASCAPE project to more broadly support older Australians "ageing at the margins".

Rhys works closely with Dr Jane Hwang on an emerging program of research exploring the reintegration journeys of older people leaving Australian prisons. This includes qualitative and mixed-methods studies examining health literacy, digital exclusion, and the emotional dimensions of post-release recovery. He was recently awarded a seed grant (Unpacking strengths-based emotional healing and trauma recovery for older Australians with a recent experience of incarceration), to investigate how older people define and navigate emotional healing after prison, and how services can better support this process.

Rhys is also involved in the ReINVEST trial- a world first randomised control trial evaluating pharmacological interventions for men with histories of violence- where he supports qualitative research and knowledge translation efforts. He has also contributed to multiple large-scale national evaluations and policy projects across ageing, mental health, and justice health sectors during his time at Deloitte Consulting and Australian Healthcare Associates (AHA).

A key interest of Rhys’ is critical realism, which he applies to unpack complex social and psychological phenomena in justice health. This approach underpins much of his qualitative work, particularly in understanding the lived experiences of marginalised and underserved populations, and in generating practical, theory-informed insights for service design and policy reform.

He is committed to applied, interdisciplinary research that turns knowledge into action- supporting trauma-informed, culturally safe and user-accepted solutions for underserved populations.

Research strengths

  • Designing and developing digital health tools and game-based cognitive assessments
  • Novel screening approaches to detect dementia in marginalised cohorts
  • Reintegration and post-release outcomes for older people ageing at the margins
  • Trauma recovery, mental health and emotional wellbeing in marginalised populations
  • Critical realism, participatory approaches and complex qualitative methodologies
  • Justice health policy, service design and reform
  • Large scale health and social service evaluations
  • Journal articles | 2025
    Mantell R; Hwang YIJ; Dark M; Radford K; Kasumovic M; Monds L; Schofield PW; Butler T; Withall A, 2025, 'Evaluating the User Experience and Usability of Game-Based Cognitive Assessments for Older People: Systematic Review', Jmir Aging, http://dx.doi.org/10.2196/65252
    Journal articles | 2025
    Mantell R; Withall A; Hagos AK; Radford K; Ginnivan N; Snoyman P; Schofield PW; Butler T; In Jane Hwang Y, 2025, 'A critical realist analysis of digital health screening for older people in prison', Ssm Qualitative Research in Health, 8, http://dx.doi.org/10.1016/j.ssmqr.2025.100581
    Journal articles | 2025
    Monds LA; Crowe A; Bravo M; Ridley N; Newcombe D; Mantell R; Lintzeris N; Withall A, 2025, 'The Feasibility of Goal Management Training to Address Cognitive Impairment in an Outpatient Alcohol Treatment Population: Findings from a Novel Case Series', International Journal of Mental Health and Addiction, 23, pp. 1 - 12, http://dx.doi.org/10.1007/s11469-023-01052-8
    Journal articles | 2023
    Mantell R; Hwang YIJ; Radford K; Perkovic S; Cullen P; Withall A; Hwang J, 2023, 'Accelerated aging in people experiencing homelessness: A rapid review of frailty prevalence and determinants', Frontiers in Public Health, 11, pp. 1086215, http://dx.doi.org/10.3389/fpubh.2023.1086215
    Journal articles | 2023
    Mantell R; Withall A; Radford K; Kasumovic M; Monds L; Hwang YIJ, 2023, 'Design Preferences for a Serious Game-Based Cognitive Assessment of Older Adults in Prison: Thematic Analysis', Jmir Serious Games, 11, http://dx.doi.org/10.2196/45467
  • Reports | 2025
    Butler T; Knight L; Akpanekpo E; Mantell R; Ton B; Schofield PW, 2025, ReINVEST: A pharmacotherapy-based intervention to reduce domestic violence offending, Justice Health Research Program, School of Population Health, University of New South Wales, Sydney, http://dx.doi.org/10.26190/unsworks/31852
    Preprints | 2025
    Hwang JYI; Butler T; Schofield P; Mantell R; Kasumovic M; Ginnivan N; Radford K; Hubbard RE; Gordon E; Montalto A; Snoyman P; Withall A, 2025, Collaborative Development and User Testing of a Digital Frailty and Aging Screener for Marginalized Older Adults Using Audio Computer Assisted Self Interview (ACASI): Lessons From the ASCAPE Project (Preprint), http://dx.doi.org/10.2196/preprints.85768
    Preprints | 2024
    Mantell R; Hwang YIJ; Dark M; Radford K; Kasumovic M; Monds L; Schofield PW; Butler T; Withall A, 2024, Evaluating the User Experience and Usability of Game-Based Cognitive Assessments for Older People: Systematic Review (Preprint), http://dx.doi.org/10.2196/preprints.65252
    Preprints | 2023
    Mantell R; Withall A; Radford K; Kasumovic M; Monds L; Hwang YIJ, 2023, Design Preferences for a Serious Game–Based Cognitive Assessment of Older Adults in Prison: Thematic Analysis (Preprint), http://dx.doi.org/10.2196/preprints.45467
    Preprints | 2023
    Monds LA; Crowe A; aguilera MB; Ridley N; Newcombe D; Mantell R; lintzeris N; Withall A, 2023, The Feasibility of Goal Management Training to address cognitive impairment in an outpatient alcohol treatment population: findings from a novel case series, http://dx.doi.org/10.31234/osf.io/hka74
    Conference Abstracts | 2021
    Hwang J; Withall A; Schofield P; Hagos AK; Ginnivan N; Mantell R; Radford K; Snoyman P; Hampton S; Grant L; Butler T; Hagos AK, 2021, 'Designing digitally delivered health screening tools to meet the needs of Australia’s ageing prisoner population', Online, presented at 54th Conference of the Australian Association of Gerontology, Online, 09 November 2021 - 12 November 2021

Postgraduate Scholarship, Australian National Health and Medical Research Council (2021-2025)- A serious game approach to cognitive assessment in marginalised populations.

Seed Grant, UNSW School of Population Health (2025) -  Unpacking strengths-based emotional healing and trauma recovery for older Australians with recent experience of incarceration.

RM Gibson Program, AAG Research Trust and Dementia Australia Research Foundation (2025-2027) - ASCAPE at the Margins: User evaluation of a game-based cognitive assessment for older marginalised Australians

Commissioned Research

Australian Association of Gerontology (2021-2022) - $30,000. Prison Leavers Project: care and support needs after leaving prison in old age - Preparation of a Background Paper, Position Paper for Government and "Things To Consider" for aged care providers. 

Projects

  • PhD: A serious game approach to understand and detect cognitive impairment issues in marginalised populations. Part of the NHMRC Ideas grant (2021-2023) ASCAPE: Audio delivered screening for cognition and age-related health in older prisoners.
  • ReINVEST: Reducing impulsive behaviour in male, repeat-violent offenders
  • Leaving prison in later life; HEADLITEs
  • Unpacking strengths-based emotional healing and trauma recovery for older Australians with a recent experience of incarceration

My Teaching

Past

Teaching assistant for PHCM9761-PH Aspects of Mental Health (T2) - 2021 and 2022