1. Improving replicability in addiction research
Robert West, UCL
Discussant: Tom Freeman, King’s College London

2. Replicability
Extent to which reported study findings are repeated when what is believed to be essentially the same study is repeated
Psychological Science:
Aim to replicate 100 studies
47% original effect sizes within 95% CIs of replication effect sizes
Science (2015)
Addiction Science?

3. How to improve replicability
Clarify constructs; ‘addiction ontology’ (e.g. craving, stress, recovery)
Develop models linking constructs, their definitions, and interrelations
Improve measurement (database including reliability, validity)
Aid reporting (e.g. online tool)
Register analysis (e.g. open science framework)
Extend trial registration to all major studies
Conflict of interest reporting (beyond financial; code and assess impact)