“…Hitchhiking further increases opportunities for participation and allows people with aphasia to easily express congruence with a comment and/or to build on the ideas of other group members. The NGT has been previously used successfully with groups of two to nine people with aphasia (Garcia, Laroche, & Barrette, 2002;Lomas, Pickard, & Mohide, 1987). Studies using the NGT have reported increased difficulty in prioritisation as group numbers increase (Aspinal, Hughes, Dunckley, & Addington-Hall, 2006;Vella, Goldfrad, Rowan, Bion, & Black, 2000), accordingly group size was capped at a maximum of six people.…”