“…Over 30 years of research has demonstrated that young children with disabilities who experience the most severe delays in mobility can use powered mobility devices for self-directed mobility (Butler et al, 1983;Galloway et al, 2008;Lynch et al, 2009;Livingstone, 2010;Ragonesi et al, 2010;Jones et al, 2012). Equally important, using this technology results in some of the developmental gains associated with the onset of crawling and walking (Butler et al, 1983;Galloway et al, 2008;Lynch et al, 2009;Livingstone, 2010;Ragonesi et al, 2010;Jones et al, 2012).…”