“…The Delphi technique is based on a multi-round approach (Humphrey-Murto et al, 2017;Tack at al., 2017;Lakanmaa, Suominen, Perttilä, J., Puukka, & Leino-Kilpi, 2012). Controlled feedback is achieved by those multiple rounds distributing specifically designed questionnaires among the participants, and collecting data during each round.…”