Richard J Siegert

Richard J Siegert
Auckland University of Technology | AUT · Psychology and Rehabilitation

PhD

About

269
Publications
120,382
Reads
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8,071
Citations
Additional affiliations
February 2012 - present
Auckland University of Technology
Position
  • Professor of Psychology and Rehabilitation
October 2007 - January 2012
King's College London
Position
  • Reader in Rehabilitation
October 2007 - December 2011
King College
Position
  • Reader in Rehabilitation

Publications

Publications (269)
Article
Objective: To measure symptoms of anxiety, depression and hopelessness in a sample of young Pacific adults living in Auckland, New Zealand during the 2020/2021 COVID-19 pandemic and identify protective factors. Methods: Participants were 267 Pacific adults (58% female) who completed a survey online. Analyses included descriptive statistics, corr...
Article
Full-text available
The increasing demand for palliative care in New Zealand presents a potential threat to the quality of service delivery. One strategy to overcome this is through the implementation of valid and reliable patient-reported outcome measures. This mixed-methods study aimed to (1) implement measurement-based palliative care (MBPC) in a community palliati...
Article
Background Network analysis provides opportunities to gain a greater understanding of the complex interplay of risk factors for depression and heterogeneous symptom presentations. This study used network analysis to discover risk factors associated with both depression severity and depression symptoms amongst Pacific adolescents in New Zealand. Me...
Article
Aim: To develop and validate a questionnaire to measure health CE at governance level. Method: This study used qualitative and quantitative methods (including focus groups, cognitive interviews and an international survey), and consisted of two phases. In Phase 1, an initial list of items was generated and refined with feedback from health consu...
Article
Purpose: 1: To determine whether Total UK FIM + FAM scores can identify patients in VS/MCS. 2: Using the identified cut-off points, to examine outcomes from specialist rehabilitation. Methods: Part 1: Retrospective analysis of a consecutive clinical cohort (n = 388) presenting to a single specialist PDOC evaluation programme 2007-2021. FIM + FAM...
Article
Full-text available
Context The growth of patient reported outcome measures data in palliative care provides an opportunity for machine learning to identify patterns in patient responses signifying different phases of illness. Objectives The study will explore if machine learning and network analysis can identify phases in patient palliative status through symptoms r...
Article
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Objectives Numerous studies have documented the positive effects of mindfulness practice on the alleviation of various kinds of psychological distress, but a dearth of evidence remains related to the validity of common mindfulness instruments in Indian populations. The present study aimed to explore the higher-order construct of mindfulness in Indi...
Article
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Objective To evaluate the psychometric properties of the Brain Injury Screening Tool (BIST) symptom scale in a sample of people with a mild Traumatic Brain Injury (mTBI) through Rasch analysis, and to obtain an interval level measurement score for potential clinical use. Materials and methods Data were obtained from 114 adults aged over 16 years,...
Article
Background: Prototype analyses of well-being have identified central characteristics and prototypicality for New Zealand teachers, lawyers, adolescents, and work well-being of nurses. What has not yet been explored is the broad construct of well-being in intensive care nurses. Aims and objectives: To identify intensive care nurses' conceptions o...
Article
Accurate distinction between state and trait anxiety is necessary for assessment and monitoring of individual anxiety levels over time and developing effective interventions to reduce anxiety. Generalizability theory (G-theory) is a suitable method to distinguish between state and trait and to evaluate reliability of test scores and sources of meas...
Article
Depression and anxiety are common sequelae of stroke, occurring in at least one-third of patients. This study evaluated the acceptability and feasibility of providing mindfulness training (MT) to stroke survivors with the aim of reducing depression and anxiety. Following a six-week one-on-one MT course, 17 participants were interviewed. The median...
Article
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While evidence supports the feasibility of online mindfulness training (MT), the effect of this approach on cognition remains unclear. The present study investigated changes in cognition following a newly developed 6-week videoconference-delivered MT program on cognitive function in two groups. The first group (n = 17) had two baseline assessments...
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Objectives Mindfulness is an evidence-based treatment for depression but has never been rigorously tested with stroke survivors with depression. This feasibility study examined several issues relevant to a potential trial of a mindfulness-based intervention (MBI) for improving mood after stroke. Methods In 2017–2019 in New Zealand, we recruited 20...
Preprint
Full-text available
Objective To evaluate the psychometric properties of the Brain Injury Screening Tool (BIST) symptom scale in a sample of people with a mild Traumatic Brain Injury (mTBI) through Rasch analysis, and to obtain an interval level measurement score for potential clinical use. Materials and Methods Data were obtained from 114 adults aged over 16 years,...
Article
Lay abstract: The Autism Spectrum Rating Scale is a behavioural rating scale completed by parents and teachers that is useful for identifying children with an autism spectrum disorder. The development of a modified Autism Spectrum Rating Scale suitable for use in China is important for the identification of children in China with an autism spectru...
Article
Full-text available
Objectives Mindfulness, positive affect, and compassion may protect against psychological distress but there is lack of understanding about the ways in which these factors are linked to mental health. Network analysis is a statistical method used to investigate complex associations among constructs in a single network and is particularly suitable f...
Article
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The Positive and Negative Affect Schedule (PANAS; Watson, Clark, & Tellegan, Journal of Personality and Social Psychology, 54(6), 1063–1070, 1988) is a widely used affect measure but it has the limitations of an ordinal scale such as low precision and unsuitability for use with parametric statistics. Rasch analysis is an appropriate methodology use...
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Patients who have had prolonged stays in intensive care have ongoing rehabilitation needs. This is especially true of COVID-19 ICU patients, who can suffer diverse long-term ill effects. Currently there is no systematic data collection to guide the needs for therapy input for either of these groups nor to inform planning and development of rehabili...
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Currently health care pathways (the combination and order of services that a patient receives to manage their injury) following a mild traumatic brain injury vary considerably. Some clinicians lack confidence in injury recognition, management and knowing when to refer. A clinical expert group developed the Brain Injury Screening Tool (BIST) to prov...
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Mindfulness training is associated with improvements in psychological wellbeing and cognition, yet the specific underlying neurophysiological mechanisms underpinning these changes are uncertain. This study uses a novel brain-inspired artificial neural network to investigate the effect of mindfulness training on electroencephalographic function. Par...
Article
Objective The Cognition Battery of the National Institute of Health (NIH) Toolbox for Assessment of Neurological and Behavioural Function is a computerised neuropsychological battery recommended for clinical practice, neurological research and clinical trials. We investigated the utility of the NIH Toolbox Cognition Battery (NIHTB-CB) for people wi...
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Persistent post-concussion syndrome (PCS) symptoms are known to last years after traumatic brain injury (TBI), and similar symptoms are increasingly being documented among those who have not experienced a TBI. There remains however, a dearth of empirical evidence on the structural composition of symptoms beyond the post-acute symptom phase after TB...
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Background: A major problem in quantifying symptoms of schizophrenia is establishing a reliable distinction between enduring and dynamic aspects of psychopathology. This is critical for accurate diagnosis, monitoring and evaluating treatment effects in both clinical practice and trials. Materials and methods: We applied Generalisability Theory,...
Article
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Introduction A growing number of children and young people are surviving severe acquired brain injuries due to advances in healthcare. However, many fail to emerge from coma and continue to live with disorders of consciousness (DOC). Diagnostic, clinical and ethical challenges are prominent in this group. Misdiagnosis can have severe consequences f...
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Background: Conservative, first-line treatments (exercise, education and weight-loss if appropriate) for hip and knee joint osteoarthritis are underused despite the known benefits. Clinicians' beliefs can affect the advice and education given to patients, in turn, this can influence the uptake of treatment. In New Zealand, most conservative OA man...
Article
Full-text available
Objectives Accurate evaluation of mindfulness-based training requires understanding of the differences between state and trait changes, and the Generalizability Theory (G-Theory) is the most appropriate method to differentiate these aspects in a measure. The Five Facet Mindfulness Questionnaire (FFMQ) is widely used measure of dispositional mindful...
Article
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The Illness Perception Questionnaire-Revised (IPQ-R) has been used extensively across many health conditions to measure patient illness and treatment perceptions. The constructs have an association with treatment adaptation and adherence which, in turn, are considered core factors involved in bariatric surgery outcome. This study examines the facto...
Article
In this study we examined the psychometric properties of the World Health Organization Disability Assessment Schedule (WHODAS 2.0 12-item version) in a mild traumatic brain injury (MTBI) sample. Materials and Methods: Treatment-seeking adults (n = 131) with MTBI recruited from outpatient clinics in Vancouver Canada, were assessed 1- and 3-months fo...
Article
Fear avoidance behavior is related to symptom persistence and disability in various health conditions, such as chronic pain. Fear avoidance behavior may also impact recovery from mild traumatic brain injury (MTBI), but no measure of this construct has been psychometrically validated for the MTBI population. Adults who sustained an MTBI (N = 159) we...
Preprint
Full-text available
Background: Conservative, first-line treatments (exercise, education and weight-loss if appropriate) for hip and knee joint osteoarthritis are underused despite the known benefits. Clinicians’ beliefs can affect the advice and education given to patients, in turn, this can influence the uptake of treatment. In New Zealand, most conservative OA mana...
Preprint
Background: Conservative, first-line treatments (exercise, education and weight-loss if appropriate) for hip and knee joint osteoarthritis are underused despite the known benefits. Clinicians’ beliefs can affect the advice and education given to patients, in turn, this can influence the uptake of treatment. In New Zealand, most conservative OA mana...
Article
Full-text available
Minority ethnic patient groups typically have the highest bariatric surgery preoperative attrition rates and lowest surgery utilisation worldwide. Eligible patients of Pacific Island ethnicity (Pacific patients) in New Zealand (NZ) follow this wider trend. Objectives The present study explored structural barriers contributing to Pacific patients’...
Article
Background: There had been little focus on the well-being of intensive care nurses until a recent programme of research found work well-being to be best described as a collection of elements, a multifaceted construct. Strengtheners of intensive care nurses' work well-being were found to extend across individual, relational, and organizational reso...
Article
Aims: To develop a structured goal-set for use in programs for the assessment and management of prolonged disorders of consciousness (PDOC). Methods: A retrospective analysis of goals from a consecutive cohort of patients (n = 162) admitted to a specialist in-patient PDOC program in the UK from 2007 to 2018. Overall goal attainment was examined wit...
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Objective: To determine whether the UK Functional Assessment Measure (UK FIM+FAM) fits the Rasch model in patients with complex disability following traumatic brain injury. Design: Psychometric evaluation including preliminary exploratory and confirmatory factor analyses followed by Rasch analysis. Participants: A multicentre UK national cohor...
Preprint
Background Conservative treatments for hip and knee joint osteoarthritis are underused despite the known benefits. Adherence to conservative treatments is poor and affected by people’s health, illness and treatment beliefs. Clinicians’ beliefs can also affect the advice and education given to patients. Few studies have explored general practitioner...
Article
Full-text available
Purpose: The aim of this study is to evaluate the properties of the Leg Activity measure according to COnsensus‐based Standards for the selection of health Measurement INstruments. Method: Participants were assessed at baseline, one day, 6 weeks and 12 weeks, following treatment for leg spasticity with botulinum toxin and physical interventions. Re...
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Background: Intensive care nurse wellbeing is essential to a healthy healthcare workforce. Enhanced wellbeing has widespread benefits for workers. Bibliometrics enables quantitative analysis of bourgeoning online data. Here, a new model is developed and applied to explore empirical knowledge underpinning wellbeing and intensive care nurse wellbein...
Article
Objective: To use Rasch analysis to validate the WHOQoL-BREF and existing short versions in individuals with traumatic brain injury (TBI) and orthopaedic injuries, with comparisons to general population groups. Design: The Partial Credit Rasch model was applied to evaluate the WHOQoL-BREF as well as shortened versions using a cross-sectional study...
Article
Aim The aim of the study was to pilot the feasibility of long-term outcomes data collection from adult major trauma survivors in New Zealand. This initial paper aims to characterise the New Zealand major trauma population in terms of long-term disability and functional outcomes after major trauma. Method A prospective cohort study of adults who ha...
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Full-text available
Rationale The gut-brain axis includes bidirectional communication between intestinal microbiota and the central nervous system. Bifidobacterium and Lactobacillus spp. have been implicated in psychological health, such as depression, through various pathways (e.g. inflammation). Research needs a better understanding of direct and indirect effects th...
Article
Background: Patients with multiple myeloma, an incurable haematological cancer, often receive palliative care only late in their trajectory. Criteria for early referral are lacking. Aim: To identify which patients might benefit from early integration, by identifying trajectories of health-related quality of life and the determinants for declinin...
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There has been substantial interest in Mindfulness Training (MT) to understand how it can benefit healthy individuals as well as people with a broad range of health conditions. Research has begun to delineate associated changes in brain function. However, whether measures of brain function can be used to identify individuals who are more likely to...
Book
This book provides an outline and critical discussion of the characteristics of mindfulness-based interventions (MBIs) research. Since the first reports on the use of mindfulness practices in health interventions, a large body of research literature has emerged to document the effectiveness of MBIs for reducing psychological distress and to increas...
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Technology is increasingly being integrated into the provision of therapy and mental health interventions. While the evidence base for technology-led delivery of mindfulness-based interventions is growing, one approach to understand the effects of technology-delivered elements includes programs that retain some aspects of traditional face-to-face i...
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Introduction The King’s Brief Interstitial Lung Disease (KBILD) is a 15-item validated health-related quality of life (HRQOL) questionnaire. The method of scoring the KBILD has recently changed to incorporate a logit-scale transformation from one that used raw item responses, as this is potentially a more linear scale. The aim of this study was to...
Article
Purpose: Our objective was to explore the intersection between mild traumatic brain injury (MTBI) recovery experiences and injury understandings, using both quantitative and qualitative methods. Materials and Methods: The quantitative component was a descriptive case–control study comparing participants (n = 76) who had recovered or not recovered a...
Article
Background and purpose: Unique work challenges of intensive care nurses can cause both stress and distress to nurses, evident in prevailing literature regarding burnout, compassion fatigue, and moral distress. Identifying factors contributing to intensive care nurses' well-being would complement this focus on nurse ill-being, supporting the develo...
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Full-text available
Background: Measuring wellbeing has never been so important. With the rapid growth of workplace wellbeing interventions, determining their effectiveness is not only good science but also good practice. A wide variety of wellbeing measures exist in the literature but it is not always clear what they are measuring, nor which measures best meet study...
Article
Full-text available
There is a well-documented evidence base for the beneficial effects of mindfulness-based interventions for various health issues, and research has increasingly explored the role of mindfulness in nonclinical contexts. While the Five Facet Mindfulness Questionnaire (FMMQ) was widely used to study dispositional mindfulness, no work has investigated t...
Article
Full-text available
Background Bariatric surgery results in substantial medical and economic benefits; however, independent studies typically report high patient preoperative attrition rates. Studies have identified individual characteristics and sociodemographic variables of those who complete the surgery compared to those who do not. The aim of the present protocol...
Article
Full-text available
Context: Accurate assessment of a patient's palliative care needs is essential for the timely provision of treatment and support. The Integrated Palliative Care Outcome Scale (IPOS) is an ordinal measure possessing acceptable psychometric properties, but its ability to discriminate precisely between individual symptom levels has not been rigorousl...