“…Current SNUD instruments were validated in a range of countries, namely Asia (n = 14 studies: Turkey, China, Iran, Morocco, Thailand, and Tunisia) followed by Europe (n = 10 studies: Italy, Portugal, Germany, Hungary, Netherlands, and Poland) and North and South America (n = 3 studies: Mexico,Peru, and the US). Of the scales being adapted to other languages, a total of 10 studies used appropriate procedures, ie, translation-back-translation (BFAS, BFAS-SF, BFAS-Thailand version [BFAS-Thai], BSMAS-SF, Generalized Problematic Internet Use Scale 2, and SMDS-SF).…”