When is Too Few Too Bad
Khai Nhut Truong · GetMobile Mobile Computing and Communications · 2015
Evaluating a system with users is an important part of interactive applications research and development. However, there are many challenges to conducting an effective evaluation. One such challenge is involving an appropriate number of participants in a study. Although the number of participants involved has varied in previously published studies of interactive systems, it does not mean that any value can be used. When too few participants are involved, those studies are often regarded as weak, incomplete, or otherwise invalid.