An in ter est in the de sign of in ter faces has been a core topic for re search ers and prac ti tio ners in the field of hu man–com puter in ter ac tion (HCI); an in ter est in the de sign of ex per i ments has not. To the ex tent that re li able and valid guid ance for the for mer de pends on the re sults of the lat ter, it is nec es sary that re search ers and prac ti tio ners un der stand h...
