“…Summarizing and disseminating interventions for children with deafblindness within a wide range of age (from 8 months up to 18 years) could be regarded as problematic. However, the results indicate that similar outcomes were identified in children at different ages having had the same, but individualized intervention (Brady & Bashinski, 2008; Bruce et al, 2016; Brum, 2021; Damen et al, 2021; Grisham‐Brown et al, 2000; Haakma et al, 2016, 2017a, 2017b; Janssen et al, 2002, 2003, 2004, 2006, 2007, 2010, 2011, 2012; Leelavathi et al, 2011; Murdoch et al, 2014; Rowland & Schweigert, 2000a, 2000b). The widest age range among the children, 14 years, was seen in a study examining the efficacy of tangible symbols for communication (Rowland & Schweigert, 2000a).…”