Fabrizio Nunnari

3 Questions 3 Answers 0 Followers

Questions related from Fabrizio Nunnari

How do I measure / evaluate / report about the learning effect of repeated time measurements?

I conducted an experiment with 80 subjects, each of them performing 50 trials. I measured the time (in seconds) needed to accomplish each trial. Trial-after-trial, every subject has the tendency...

12 December 2016 8,294 6 View

How to assess the reliability of the results of a user study based on Pairwise Comparison?

I am using the prefmod R package to analyze paired comparison votes. However, I am not able to measure how reliable the result is, i.e., if there is really a significant difference in the...

08 August 2016 5,776 1 View

How many votes are needed in a study based on Paired Comparison?

I am running a study involving N=100 items that subjects will compare, side-by-side, and declare the preferred one. This process is known as Paired (or Pairwise)...

07 July 2016 1,856 3 View