“…SLPs working with children who demonstrate a range of disabilities and communication diffi culties have reported a number of factors perceived to infl uence the quality of intervention delivery, such as introducing AAC systems and working collaboratively with all stakeholders to maximize outcomes for learners (Clarke et al, 2011;Hutchins, Howard, Prelock, & Belin, 2010;Iacono & Cameron, 2009;Siegel, Maddox, Ogletree, & Westling, 2010;Soto et al, 2001). These factors included (a) SLPs ' knowledge, skills and access to professional development; (b) attitudes, perceptions, and beliefs of other professionals; (c) features of the student ' s school setting or early childhood context; (d) extent of organizational support for implementation; and (e) parental attitudes and the home context.…”