... deviation in WR of “normal” speech in speakers of the same age is about half of the pathologic one. Thisis still considerable. Currently, norm data for all age classes and gender are not available. ... Schimming, A. Schramm, D. Schmalohr, A. Bremerich, and J. Kugler, “Pain, function, and psychologicoutcome before, during, and after intraoral tumor resection,”Journal of Oral and Maxillofacial Surgery,vol.60,no.7,pp.772–777, ... estimation scales such as visual analoguescales, because the interval size of an equal-appearing inter-val scale might be not equal in all continua. Hence, statisticalanalyses which do not take...