Meet the team

We are researchers based at University of Hertfordshire

PHAB Lab research team

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Professor Katie Newby

Professor in Health Behaviour Change

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Professor Katherine Brown

Professor of Behaviour Change in Health

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Dr Neil Howlett

Reader in Behaviour Change and Public Health

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Dr Stef Williams

Senior Research Fellow

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Nigel Lloyd

Senior Research Fellow

Headshot of Kayleigh Kwah

Kayleigh Kwah

Research Fellow

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Lauren Schumacher

Research Fellow

Headshot of Laura Lamming

Laura Lamming

Research Fellow

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Imogen Freethy

Senior Research Assistant

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Isobel Simmons

Research Assistant

PHAB Lab PhD students

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Hannah Allcott-Watson

Title: Development and evaluation of an evidence-based behaviour change programme for young people focusing on physical activity, healthy eating and wellbeing

Dates: December 2019 to November 2023

Summary: Partnering with the charity HENRY, this PhD aims to develop a new programme for teenagers to support them to engage in healthy behaviours that tend to decline over the adolescent years.

Supervised by: Dr Neil Howlett, Professor Angel Chater (University of Bedfordshire), Dr Nick Troop and Dr Katie Newby.

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Susan Gibson

Title: Contributing to an International Collaboratory of Centres for Understanding Behaviour Change (CUBiC): How Can the Use of Graded Tasks be Optimised to Promote Physical Activity

Dates: February 2022 to February 2026

Summary: This 3-stage project includes

  • A systematic review and meta-analysis of current evidence
  • A thematic analysis of semi-structured interviews exploring how people are currently using graded tasks to increase levels of physical activity
  • A pilot study informed by the first two stages

Supervised by: Dr Neil HowlettDr Katie NewbyProfessor Katherine Brown, Dr Tracy Epton (University of Manchester) and Professor Chris Armitage (University of Manchester).

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Kayleigh Kwah

Title: Developing the scientific understanding of barriers to breastfeeding and the application of behaviour change theoretical frameworks to optimise the impact on infant feeding behaviours

Dates: September 2023 to September 2025

Summary: To understand the barriers to breastfeeding using the COM B model and translate these to operationalised evidence-based techniques by applying behaviour change theoretical frameworks to the development of infant feeding interventions that compliment infant feeding support in the UK

Supervised by: Professor Katherine BrownDr Katie Newby.

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Lauren Schumacher

Title: Optimizing Young People’s Engagement with Digital Health Behaviour Change Research

Dates: September 2023 to September 2025

Summary: This PhD aims to understand the factors involved in optimising young people’s engagement in digital health behaviour change interventions and research. This original work will address important, known challenges and will seek to offer processes and solutions that can be replicated by other researchers to optimise engagement.

Supervised by: Dr Katie NewbyProfessor Katherine Brown.

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Mini Weerakoon

Title: Exploring Perceived Benefits of Smoking, Health Promoting Alternatives, and personalised Interventions: A Repertory Grid Analysis in Health Psychology

Dates: February 2024 to February 2026

Summary: a multi-faceted approach, comprising a systematic review, open-ended surveys, and innovative repertory grid analysis aiming to delve into the often-overlooked realm of why individuals perceive smoking to be beneficial and how these perceptions can be leveraged to facilitate successful smoking cessation.

Supervised by: Professor Katherine Brown, Professor David Winter.