“…Conversely, empowerment was addressed infrequently within the research guidance and the CoP (2007), which is consistent with comments from the House of Lords select committee 2 . In accordance with the legal test for capacity, the research guidance adopted a binary approach to mental capacity assessment, whereby a person was either assessed to have capacity or not 21,22,29,30 . However, fluctuations in capacity and how these affect an individual's eligibility to participate in research requires consideration 21,22,29,30 .…”