“…Questionnaires are the instrument that has been used in numerous previous studies [ 26 , 27 , 28 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ] for website evaluation. However, for an instrument to be useful, it must be valid, reliable, easy to apply and usable in any environment [ 42 , 43 , 44 ].…”