I have a likert scale on 29 items in a survey. I wish to run a TURF analysis to understand reach. I was trying to do the same using the Maxdiffanalyzer.com. Unfortunately, I'm not sure of how the data should be fed into the tool. Do I need to convert the (Very likely-somewhat likely) scale to 1 and the rest to 0.
What is the Reach method should I use? I use weighted by probability for MaxDiff scores, but I don't think we can use this for integer data.
If I use the First choice method, I'm unable to explain such low reach numbers.