To both my supervisors, thank you for being my guides since I started my research journey. Your research experience has been invaluable. Thank you, Gitte, for providing me with a patient and sound start in research, and valuable life advice. Louise, thank you for being my guide into the world of qualitative research, it has been eye-opening.Thank you to The HEARing CRC for the opportunity to turn a research project into this PhD, and to Mark Seeto for proofreading parts of this thesis. Dank u, mama en papa voor jullie onaflatende steun in mijn avonturen, goeie raad en relativering. Dankzij de wekelijkse samenkomst op Skype voel ik me nog altijd een deel van de familie, danku Sara en Bram. Bedankt Meme voor al de uren aan de telefoon, het delen van uw verhalen en levenservaring.Jens, thank you for all your time, for sharing and traveling with me, for listening and being part of my life. Experiments and footprints. H 3 .And then there are those who made me feel welcome when I moved countries and states, helped me along my audiological and life journey and became friends along the way, thank you.A special thank you to Rudy and Yingru for providing me with a second home.Thank you, NALites, it has been an adventure working with colleagues from different fields and cultures, who together make NAL such a unique working environment.And finally, thank you to the participants whose effort is captured between the pages of this thesis, especially those who attended for not one but two studies with multiple appointments, the time you have dedicated to hearing research is very much appreciated.ixFinancial support This research was supported by an Australian Government Research Training Program Scholarship and conducted by The HEARing CRC, established under the Australian Government's Cooperative Research Centres (CRC) Program. The CRC Program supports industry-led collaborations between industry, researchers and the community. The candidate acknowledges the financial support of the Australian Government through the Department of Health.