Author Topic: Class interval structure, distractor analysis  (Read 508 times)

OG

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Class interval structure, distractor analysis
« on: April 15, 2016, 02:19:36 PM »
Dear Eveline,
How can I reduce the number of class intervals from 10 to e.g. 4? I'm running a distractor analysis with only n = 255 respondents.

Eveline Gebhardt

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Re: Class interval structure, distractor analysis
« Reply #1 on: April 18, 2016, 12:04:12 AM »
Hi

That depends on the context in which you'd like to change it. If it is for ICC plots, you can add "!bin=4" to the statement.

The command reference guide should be helpful in finding out how to change this for other commands.

Kind regards
Eveline

OG

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Re: Class interval structure, distractor analysis
« Reply #2 on: April 23, 2016, 09:57:03 AM »
Very helpful - thanks!
(I used "bins" as "bin" did not seem to work.)
I'll use a black-white output, so the distractors' colours are not visible. Can one change the "line style" of the distractor curves to use different "dash types"?

Eveline Gebhardt

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Re: Class interval structure, distractor analysis
« Reply #3 on: April 26, 2016, 02:04:00 AM »
You may be able to change certain features in the PlotQuest program, after producing them, but I am not sure what is exactly possible. Please let me know if you can't find it and I'll have a look as well.

Eveline