Harry T Clelland

About Me

I was awarded my PhD in Psychology from Northumbria University in 2023. In my research life I work on large-scale collaborative projects spanning both social psychology and metascience. On the metascience branch we are attempting to estimate the analytical robustness of the social and behavioural sciences. On the social psychology branch I am a lead on the #ManyHappyPeople project, which is a newly launched global megastudy testing the effectiveness of frequently-recommended behaviours for increasing happiness. This is exciting work completed as part of my postdoc fellowship at ELTE University. 

I also do research in psycholinguistics, running entirely open science experiments to understand the production and comprehension of language about human health. 

In my teaching life I teach statistics at both undergraduate and postgraduate level. I have been a demonstrator at Northumbria University since 2018, assisting workshop delivery and designing/delivering lectures on statistics and research methods. I have also acted as associate lecturer in 2024 leading a module in research methods. 

Contact me at harry.clelland@ppk.elte.hu 🙂

Last Updated: April 2025

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Publications

Clelland, H.T., Haigh, M. (2025). Generic Language in the Communication of Health Research. Health Behavior Research, 8(1), 6. https://doi.org/10.4148/2572-1836.1259 

Clelland, H.T., Haigh, M. (2025). “There is 1 in 10 chance of catching Ebola”: the 1-in-X bias in probability is independent of outcome severity. Journal of Cognitive Psychology, 37(1), 65-78. https://doi.org/10.1080/20445911.2024.2424246 

Haigh, M., Birch, H., Clelland, H.T. (2025). “Experts think…”  The production and comprehension of propositional attitude generics. Thinking & Reasoning, 31(1), 56-81. https://doi.org/10.1080/13546783.2024.2370924 

Clelland, H. T., & Haigh, M. (2023). Politeness and the communication of uncertainty when breaking bad news. Discourse Processes, 60(7), 479-501. https://doi.org/10.1080/0163853X.2023.2245310