Which description fits this data set? Task Presentation Task Difficulty Paper Computer Easy 80 90 85 Hard 60 70 65 70 80 There is a main effect for task difficulty such that perfomance is higher on easy tasks than hard tasks. There is a main effect for task difficulty such that perfomance is higher on easy tasks than hard tasks, however this effect is not descriptive for computer presentation. There is a main effect for task difficulty such that perfomance is higher on easy tasks than hard tasks, however this effect is greater for computer presentation. There is a main effect for task difficulty such that perfomance is higher on easy tasks than hard tasks, however this main effect is not descriptive for paper presentation. There is a main effect for task difficulty such that perfomance is lower on easy tasks than hard tasks