Can anyone help me with GHQ - 12 with ranking and coding and reversed items?

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Lubna Dwerij

Good evening Dr. Muwafaq hope that all going well with you. I've located this article hope this help.

Muwafaq Al-Momani

Much appreciated Lubna, I have got a good one, but this will help as well. How is everything going with you? Have a good time

Dr Muwafaq

Alexandrowicz Rainer

Dear Muwafaq Al-Momani,

the following article might be of interest for you:

Using Rasch-models to compare the 30-, 20-, and

12-items version of the general health questionnaire

taking four recoding schemes into account.

http://link.springer.com/article/10.1007/s40211-015-0160-z