Ability to draw on knowledge of factors considered to contribute to the development of CFS/ME (including physical illness/ serious infections (such as glandular fever), lifestyle, stress, perfectionism and distress)
Ability to draw on knowledge of factors considered to maintain CFS/ME (such as patterns of activity characterised by boom and bust cycles, unhelpful fear avoidance beliefs leading to avoidance of activity), attentional biases towards symptoms) and how these link to physiological mechanisms including poor sleep and deconditioning
Ability to ensure that a focus on graded exercise is integrated into the intervention