Quality Features 1. Practicality and Authenticity (Louisa Woller, Sylvie Paschold, Tomás Schröder) 2. Reliability (Anna Evgeniou, Stefanie Mattil, Dominik Fries, Simon Back) 3. Validity (Daniel Rötters, Saumya Muthukamarana, Paulina Da Silva) 4. Washback (Anna Roth, Tobias Lang, Özlem Karacadal)
