“…Seven studies were identified that reported on instruments or questionnaires that could help assess the role of the advanced practice nurse or measure their activities and that had sufficient statistical data to determine the validity, reliability, and stability of these instruments. Most of the studies focused on specific areas of work such as paediatrics (Brady & Neal, 2000) or pain management (Willens, DePascale, & Penny, 2010), or particular nursing roles such as nurse practitioners (Brown & Waybrant, 1987), clinical nurse specialists (Lindeke, Canedy, & Kay, 1997), intensive care acute practitioners (Ackerman et al, 1996), or consultant nurses (Fry et al, 2013). Two of the included studies were pilot studies, which may report inaccurate results and predictions based on the pilot data obtained.…”