Dr Vance claims to have developed a theory of 'subconscious digital resonance' which explains why teenagers experience mood swings after using social media. However, Dr Vance asserts that this resonance cannot be measured by any physical instruments, nor can its effects be directly observed, but its existence is proven because teenagers continue to have mood swings.
Explain one reason why Dr Vance's theory does not meet the scientific criterion of falsifiability.
689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.