Timothy Barker

Timothy Barker

School of Public Health

Faculty of Health and Medical Sciences

Eligible to supervise Masters and PhD - email supervisor to discuss availability.


Dr. Timothy Barker is a Research Fellow within the Transfer Science team at JBI and the lead researcher of the JBI Adelaide GRADE center. He is a research methodologist, animal welfare researcher and clinical epidemiologist. Timothy has significant experience in systematic review and clinical guideline conduct and development. He contributes to the teaching and coordination of the JBI Comprehensive Systematic Review Training Program, the JBI Evidence-implementation Training Program and the JBI Adelaide GRADE workshop. JBI is an evidence-based healthcare research institute working towards a vision of the world in which the best available evidence is used to inform decision making at the point of care globally.

Timothy's research interests and past experience include:
Systematic reviews of animal and pre-clinical research
Systematic reviews of effectiveness
Systematic reviews of prevalence and incidence
Research methodology
Risk of bias
Guideline development

Timothy is an early-career researcher who has won multiple awards during his academic life, including

1st place in the 2016 School of Animal and Veterinary Sciences ‘3 Minute Thesis’ competition at the University of Adelaide

2nd place in the 2017 School of Animal and Veterinary Sciences ‘3 Minute Thesis’ competition at the University of Adelaide

Winner of the 2018, School of Animal and Veterinary Sciences, Publication Award Incentive Scheme

2018 Nomination and Semi Finalist in the Channel 9 Young Achiever Awards

Timothy Barker conducts research investigating:

  • Evidence-based healthcare
  • Systematic review methodology
  • Animal Welfare
  • Animal Behaviour
  • Clinical guideline development methods
  • Evidence transfer and knowledge translation
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  • Journals

    Year Citation
    2020 Munn, Z., Tufanaru, C., Lockwood, C., Stern, C., McAneney, H., & Barker, T. (2020). Rinse-free hand wash for reducing absenteeism among preschool and school children. Cochrane Database of Systematic Reviews, 2020(4), 122 pages.
    DOI Scopus1
    2020 Whittaker, A., & Barker, T. (2020). The impact of common recovery blood sampling methods, in mice (Mus musculus), on wellbeing and sample quality: a systematic review. Animals, 10(6), 989.
    DOI
    2020 Barker, T., Howarth, G., & Whittaker, A. (2020). Subordination in female rats impedes learning as determined by a judgment bias training protocol. Journal of Veterinary Behavior: Clinical Applications and Research, 38, 56-60.
    DOI Scopus1
    2020 Borges Migliavaca, C., Stein, C., Colpani, V., Barker, T., Munn, Z., & Falavigna, M. (2020). How are systematic reviews of prevalence conducted? A methodological study. BMC medical research methodology, 20(1), 96.
    DOI Scopus2 Europe PMC1
    2020 Whittaker, A., & Barker, T. (2020). A consideration of the role of biology and test design as confounding factors in judgement bias tests. Applied Animal Behaviour Science, 232.
    DOI
    2019 Munn, Z., Barker, T. H., Moola, S., Tufanaru, C., Stern, C., McArthur, A., . . . Aromataris, E. (2019). Methodological quality of case series studies: an introduction to the JBI critical appraisal tool. JBI Evidence Synthesis, OnlinePubl, 7 pages.
    DOI Scopus1
    2019 Barker, T., & Marin, T. (2019). A systematic review protocol: The foundation of a high quality systematic review. Pacific Rim International Journal of Nursing Research, 23(4), 311-313.
    2019 Groves, P., Barker, T., George, R., & Whittaker, A. (2019). Is evidence of empathy in laboratory rats (Rattus norvegicus) associated with pessimistic bias and increased anxiety-like behaviours?. Behavioural Brain Research.
    2019 Vaska, A., Munn, Z., Nagra, S., & Barker, T. (2019). Hernioplasty using low cost mesh compared to surgical mesh in low- and middle-income countries: A systematic review protocol. JBI Database of Systematic Reviews and Implementation Reports, 18(1), 178-185.
    DOI
    2019 Fang, Y., Wang, N., Shi, L., Barker, T., & Zhang, P. (2019). Pain relief during wound care for patients with a deep open wound in an orthopedic trauma department: a best practice implementation project. JBI Database of Systematic Reviews and Implementation Reports, 17(12), 2559-2569.
    DOI
    2018 Barker, T., Howarth, G., & Whittaker, A. (2018). Increased latencies to respond in a judgment bias test are not associated with pessimistic biases in rats. Behavioural Processes, 146, 64-66.
    DOI Scopus5 WoS4 Europe PMC1
    2018 Barker, T., Kind, K., Groves, P., Howarth, G., & Whittaker, A. (2018). Oestrous phase cyclicity influences judgment biasing in rats. Behavioural Processes, 157, 678-684.
    DOI Scopus2 WoS2 Europe PMC2
    2018 George, R. P., Barker, T. H., Howarth, G. S., & Whittaker, A. L. (2018). Reliability of a judgement bias test to assess the effects of metabolic cage housing on mice.. Journal of Applied Animal Welfare Science.
    2018 George, R., Barker, T., Lymn, K., Bigatton, D., Howarth, G., & Whittaker, A. (2018). A judgement bias test to assess affective state and potential therapeutics in a rat model of chemotherapy-induced mucositis. Scientific Reports, 8(8193), 9 pages.
    DOI Scopus3 WoS2 Europe PMC1
    2017 Barker, T., George, R., Howarth, G., & Whittaker, A. (2017). Assessment of housing density, space allocation and social hierarchy of laboratory rats on behavioural measures of welfare. PLoS ONE, 12(9), 1-22.
    DOI Scopus8 WoS7 Europe PMC5
    2017 Barker, T., Howarth, G. S., & Whittaker, A. (2017). Extinction of learning: The performance of rats on an active-choice, judgment bias paradigm.. Animal Cognition.
    2017 Barker, T., Bobrovskaya, L., Howarth, G., & Whittaker, A. (2017). Female rats display fewer optimistic responses in a judgment bias test in the absence of a physiological stress response. Physiology and Behavior, 173, 124-131.
    DOI Scopus9 WoS7 Europe PMC2
    2016 Barker, T., Howarth, G. S., & Whittaker, A. L. (2016). Lessons learnt from 12 years of cognitive bias testing in animals: the practicalities and pitfalls of designing judgement bias tests. Applied Animal Behaviour Science.
    2016 Barker, T., Howarth, G., & Whittaker, A. (2016). The effects of metabolic cage housing and sex on cognitive bias expression in rats. Applied Animal Behaviour Science, 177, 70-76.
    DOI Scopus10 WoS8
    2016 George, R., Barker, T., Howarth, G., & Whittaker, A. (2016). Mice do not exhibit pessimistic judgement biases in response to metabolic cage housing: reflection on housing type or cognitive bias methodologies. Physiology and Behavior.
  • Conference Papers

    Year Citation
    2016 Barker, T. H., Howarth, G. S., & Whittaker, A. L. (2016). Judgement Biases: Metabolic cage housing and sex effects. In Applied Animal Behaviour Science. Adelaide, South Australia: Elsevier BV.
  • Conference Items

    Year Citation
    2019 Whittaker, A., & Barker, T. H. (2019). Is It Really All Positive? Inherent Factors Influencing Judgement Bias Responses in Rats. Poster session presented at the meeting of Australasia-Africa - International Society for Applied Ethology Regional Conference. Wellington, New Zealand.
    2017 Barker, T. H., George, R. P., Howarth, G. S., & Whittaker, A. L. (2017). The Assessment of Housing Density and Social Hierarchy of Laboratory Rats on Behavioural Measures to Assess Welfare. Poster session presented at the meeting of 2017 Australian & New Zealand Council for the Care of Animals in Research and Teaching Conference, ‘Maintaining Social License in a Changing World’. Queenstown, New Zealand.
    2017 George, R. P., Barker, T., Lymn, K., Howarth, G., & Whittaker, A. (2017). Is chemotherapy-induced mucositis associated with pessimistic behaviour as demonstrated by negative judgement biases in the rat?. Poster session presented at the meeting of Australian Society for Medical Research. South Australia.
    2017 George, R. P., Barker, T. H., Lymn, K., Howarth, G. S., & Whittaker, A. L. (2017). Cognitive bias as a measure of affective state in a rat model of chemotherapy-induced mucositis. Poster session presented at the meeting of Australasian Cognitive Neuroscience Conference. South Australia.
    2016 Barker, T. H., Howarth, G. S., & Whittaker, A. L. (2016). Judgment Biases: Metabolic cage housing and sex effects. Poster session presented at the meeting of Australian and New Zealand Laboratory Animal Association. Auckland, New Zealand.
    2016 Barker, T., Howarth, G., & Whittaker, A. (2016). Correlation between cognitive bias and other measures of stress in rats. Poster session presented at the meeting of International Society for Applied Ethology. Edinburgh.
    2016 George, R., Barker, T., Howarth, G., & Whittaker, A. (2016). Mice do not exhibit pessimistic judgement biases in response to metabolic cage housing: reflection on housing type or cognitive bias methodologies.. Poster session presented at the meeting of Australian and New Zealand Laboratory Animal Conference. Auckland.
    2016 George, R., Barker, T., Howarth, G., & Whittaker, A. (2016). Mice do not exhibit pessimistic judgement biases in response to metabolic cage housing: reflection on housing type or cognitive bias methodologies.. Poster session presented at the meeting of Australian Society for Medical Research. Adelaide.
    2015 Barker, T., Howarth, G., & Whittaker, A. (2015). The effects of metabolic cage housing and sex on cognitive bias expression in rats. Poster session presented at the meeting of Abstracts of the Australia and New Zealand Laboratory Animal Conference (ANZLAA 2015). Adelaide, Australia: Australian and New Zealand Laboratory Animal Association.
  • Report for External Bodies

    Year Citation
    2019 Barker, T., Stern, C., Munn, Z., & Aromataris, E. C. (2019). Smoking Cessation Guideline Update: Technical report of evidence review and Summary of Findings.
    2018 Barker, T., Campbell, J., Stern, C., Munn, Z., & Aromataris, E. (2018). Smoking Cessation Guideline Update: Technical report of evidence review and Summary of Findings.
    2018 Barker, T., Stern, C., Aromataris, E. C., & Munn, Z. (2018). Smoking Cessation Guideline Update: Evidence to Decision Framework and Recommendations for Practice.

2018, The Royal Australian College of General Practitioners, Smoking Cessation Guideline Update (Co-investigator) 

2018-Present, JBI, Course Facilitator, Comprehensive Systematic Review Training Program https://jbi.global/education/systematic-review-training

2018-Present, JBI, Course Facilitator, Evidence-implementation Training Program https://jbi.global/education/evidence-implementation-training

2018-Present, JBI, Course Facilitator, GRADE workshop https://jbi.global/grade/training_and_events 

2014-2018, University of Adelaide, Lecturer and Tutor, Laboratory Animal Sciences III https://www.adelaide.edu.au/course-outlines/103534/1/sem-2/ 

2015-2018, University of Adelaide, Lecturer and Tutor, Principles of Animal Behaviour Welfare and Ethics https://www.adelaide.edu.au/course-outlines/104097/1/sem-2/2020

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  • Current Higher Degree by Research Supervision (University of Adelaide)

    Date Role Research Topic Program Degree Type Student Load Student Name
    2019 Co-Supervisor Systematic review and meta-analysis of the outcomes of low cost mesh in hernioplasty in low and middle income countries Master of Clinical Science Master Full Time Ashish Immanuel Vaska
  • Past Higher Degree by Research Supervision (University of Adelaide)

    Date Role Research Topic Program Degree Type Student Load Student Name
    2019 - 2019 Co-Supervisor The Neurological Impact of Specific Nutrients on Female Stress: A Two-Phase, Sequential, Mixed Methods Study Doctor of Philosophy Doctorate Full Time Mrs Delia McCabe
  • Other Supervision Activities

    Date Role Research Topic Location Program Supervision Type Student Load Student Name
    2018 - ongoing Co-Supervisor Attention-bias as a measure of animal welfare and emotion University of Adelaide Bachelor of Science (Hons) Honours Full Time Sheryn Thomas

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