Malte: thx. Who can I contact regarding Likert scales?
And if it takes 1 hour to understand I guess this is a good argument for documentation. Is programming involved or simply knowing where all the all the bells and whistles are?
It is indeed a good arguement for documentation. Feel free to write it :). You could contact myself (though we are fairly stretched at the moment so we could not help you quickly free of charge). Alternatively I think you can contact Renato Dambe at the medical faculty in Heidelberg.
