Three Rating Scale Questions. First Question: How mentally demanding was the task? Not at all mentally demanding = 1, Slightly mentally demanding = 2, Moderately mentally demanding = 3, Very mentally demanding = 4, Extremely mentally demanding = 5, Second Question: How hard did you have to work to accomplish what you want? Not hard at all = 1, Slightly hard = 2, Moderately hard = 3, Very hard = 4, Extremely hard = 5, Third question: How frustrated were you during the task? Not at all frustrated = 1, Slightly frustrated = 2, Moderately frustrated = 3, Very frustrated = 4, Extremely frustrated = 5, End of questions