This project is a collaboration between The Jean Golding Institute and Avon Longitudinal Study of Parents and Children, and is supported by The UK Reproducibility Network. The people involved are:

Professor Marcus Munafo - School of Psychological Science, Bristol University & UK Reproducibility Network.

Professor Nicholas Timpson - Principal investigator, ALSPAC & Bristol Medical School (Population Health Sciences)

Professor Katharine Robson Brown - Director Jean Golding Institute & Department of Archaeology and Anthropology, Bristol University.

Dr Kate Northstone - Executive Director for data, ALSPAC.

Mr Alex Kwong - PhD candidate, Psychiatric Epidemiology, School of Geographical Sciences, University of Bristol.

Miss Natalie Thurlby - Data Science Specialist, Jean Golding Institute & PhD candidate, School of Engineering, Bristol University.

Ms Katie Drax - PhD candidate, School of Psychological Science, Bristol University,

Mx Rob Arbon - Data Science Specialist, Jean Golding Institute & PhD candidate, School of Chemistry, Bristol University.