Mental Health Data Tools: Harmony & TIDAL Workshop

17 Aug 2023

During this half-day in-person event attendees got an introduction to two new digital tools that were designed for researchers working with longitudinal data.

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Event details


The event took place on Thursday 17 August 2023 at UCL Gordon House, London.


Please contact Bettina Moltrecht (Email:

About the event


During this free half-day attendees were introduced to two new digital tools that were designed for researchers working with longitudinal data. As part of this, we will share our insights on retrospective measurement harmonisation and the analysis and visual representation of trajectories using longitudinal survey data. In the subsequent workshops we will show you how to use the two tools with data from existing cohorts (e.g., NCDS and ALSPAC) and with your own research data. You will have the chance to try both tools using our prepared datasets and we will answer all your questions so that you are ready to use them on your own after the workshop.

The first tool, Harmony, was developed to facilitate fast and easy harmonisation of questionnaires commonly used in mental health research. Harmony uses natural language processing to identify commonalities across items which will allow you to combine and compare data from multiple studies.

The second tool, TIDAL, is a user-friendly tool that was developed to support experienced and less experienced researchers with the analyses of longitudinal data for instance, trajectory modelling.

Event agenda

12:30-13:00 – Arrival and lunch
13:00-13:10 – Introduction to the workshop
13:10-13:40 – Retrospective measurement harmonisation
13:40-14:10 – Longitudinal data analysis and visualisation
14:10-14:30 – Break (with tea and coffee)
14:30-16:30 – Workshop
16:30-18:00 – Networking with snacks and drinks

Reasons to attend

1) You will learn about key techniques and steps to retrospectively harmonise questionnaires
2) You will learn skills for analysing and visualising time trends in longitudinal data

Harmony team attending

  • Bettina Moltrecht is a post-doctoral Research Fellow in Population Health & Quantitative Social Science, based at the Centre of Longitudinal Studies, University College London.
  • Eoin McElroy is a Lecturer in Psychology, based at Ulster University.
  • Mauricio Scopel Hoffmann is a Professor of Psychiatry at the Federal University of Santa Maria (UFSM) and at the Graduate Program in Psychiatry and Behavioural Sciences at the Federal University of Rio Grande do Sul (UFRGS).

TIDAL team attending

  • Alex Kwong is a post-doctoral Research Fellow in Psychiatry Genetics at the University of Edinburgh, interested in how mental health changes over time.
  • Ellen Thompson is a post-doctoral Research Fellow based at King College London, with research interests in developmental psychopathology.
  • Amelia Edmondson-Stait is a PhD student at The University of Edinburgh with research interests in longitudinal mental health, inflammation and mental health data science.

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Event enquiries

Richard Steele
Events and Marketing Officer

Phone: 020 7911 5320

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Centre for Longitudinal Studies
UCL Social Research Institute

20 Bedford Way
London WC1H 0AL


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