“…Program lengths range from approximately 1 week (e.g., Art et al, 2008), to over one semester (e.g., Bell and Buelow, 2014) to several years (e.g., Meurer et al, 2011). Furthermore, some of the programs are very intense (e.g., full-time presence in a community during an immersion experience abroad [Kassam et al, 2013;Meili et al, 2011]), while some are much less so (e.g., 1 hour per week [Kelly, 2013]). However, because of a lack of information, it is often difficult to get an encompassing idea of a program's extent.…”