Finally, Annick de Paepe will present "Encouraging causal thinking in applied health research with causal Directed Acyclic Graphs (DAGs)", covering the question of how (health) psychologists can study causality.
DAGs are a great tool, both to become aware of your assumptions & to transparently communicate them to other researchers.
Also, they're quite easy to use - though supporting your assumptions can be challenging. Which is an asset of the method, not a drawback
8/9