1. Research and Development Department, Swiss Federal Institute for Vocational Education and Training, Lugano, Switzerland
2. Faculty of Behavioural, Management and Social Sciences, Department of Educational Science and Technology, University of Twente, Enschede, the Netherlands
3. School of Economics and Business Administration, Friedrich-Schiller-University Jena, Jena, Germany
4. School of Applied Psychology, University of Applied Sciences and Arts Northwestern Switzerland, Olten, Switzerland