In this Papers Podcast, Dr. Tom Cawthorne and Professor Roz Shafran discuss their JCPP Advances paper ‘Do single-case experimental designs lead to randomised controlled trials of cognitive behavioural therapy interventions for adolescent anxiety and related disorders recommended in the National Institute of Clinical Excellence guidelines? A systematic review’ 1. How the single-case experimental design (SCED) approach works and insight into the construct of the hierarchy of evidence. 2. How the review was