Recent content by stef0s

  1. S

    Which Test of Significane to use when comapring two interfaces using likert statements?

    Hey Greta, I would like to ask you one more thing. Am I correct assuming that I need to use an dependent t-test, because the same participants used both interfaces? Or should i use the two sample t-test assuming unequal variances? Thank you so much!
  2. S

    Which Test of Significane to use when comapring two interfaces using likert statements?

    Hey Greta, thanks for your fast response. This was my first thought too, to use a t-test. However, the majority argued that Likert scale data is ordinal and that you cant use a t-test on ordinal data. And that's where I got irritated. It seems like it's not clear on what to use.
  3. S

    Which Test of Significane to use when comapring two interfaces using likert statements?

    Hello guys, i googled so much but i can't find an answer to my question. I hope you can help me out. I have the following problem: In a user study the same participants had to use two different user interfaces for entering their preferences. Both interfaces were designed from scratch. There...