1. a Department of Psychosocial Sciences , University of Bergen , Bergen, Norway
2. b Special Education, Rehabilitation & School Psychology, University of Arizona , Tucson, Arizona
3. c Department of Speech Pathology and Audiology , University of Alberta , Edmonton, Alberta, Canada
4. d Department of Logopedy , Eikelund Resource Center , Bergen, Norway
5. e Department of Oto-Rhino-Laryngology , Haukeland University Hospital , Bergen, Norway