1 Pedagogics and Therapy in Speech-Language Disorders, Faculty of Human Sciences, University of Cologne, Klosterstr. 79b, 50931 Cologne, Germany. Electronic address: sandra.neumann@uni-koeln.de.
2 Pedagogics and Therapy in Speech-Language Disorders, Faculty of Human Sciences, University of Cologne, Klosterstr. 79b, 50931 Cologne, Germany. Electronic address: jana.quinting@uni-koeln.de.
3 Pedagogics and Therapy in Speech-Language Disorders, Faculty of Human Sciences, University of Cologne, Klosterstr. 79b, 50931 Cologne, Germany. Electronic address: anna.rosenkranz@uni-koeln.de.
4 SFB 1287 - Project B01, University of Potsdam, Campus Golm, Haus 14, 2.04, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany. Electronic address: caroladebeer.cdb@gmail.com.
5 Pedagogics and Therapy in Speech-Language Disorders, Faculty of Human Sciences, University of Cologne, Klosterstr. 79b, 50931 Cologne, Germany. Electronic address: kristina.jonas@uni-koeln.de.
6 Pedagogics and Therapy in Speech-Language Disorders, Faculty of Human Sciences, University of Cologne, Klosterstr. 79b, 50931 Cologne, Germany. Electronic address: prisca.stenneken@uni-koeln.de.