“…However, validity of the items was not checked other than by looking at their face validity (Houben et al, 2005a). Later cross-cultural adaptation studies of the PABS have mostly relied on a pretest survey to assess format, comprehensibility and acceptability (Dalkilinc, Cirak, Yilmaz, and Parlak Demir, 2015;Eland, Kvale, Ostelo, and Strand, 2017;Laekeman, Sitter, and Basler, 2008;Magalhaes, Costa, Ferreira, and Machado, 2011). No problems relating to completion of the questionnaire were reported, and comments received in pretests mainly concerned the layout.…”