“…Of the 15 studies identified in Lydon et al (2013) and Wong et al (2014) that demonstrated a reduction in vocal stereotypy, 5 of those studies were included in both reviews (Ahearn et al, 2007;Ahrens et al, 2011;Cassella, Sidener, Sidener, & Progar, 2011;Liu-Gitz & Banda, 2010;Miguel, Clark, Tereshko, & Ahearn, 2009). Participants ranged in age from 3 years to 11 years old.…”