Procedure
After approaching the 115 organizations by e-mail or telephone and sending a brochure with relevant information and the questionnaires, the organizations’ top management, director and/ or the worker's council had to be asked for approval to conduct the research (ensuring confidentiality). The questionnaire was available in Dutch, German and English. Within the 30 organizations who agreed to participate one contact person per organization send an e-mail or distributed the questionnaire in paper pencil form to a minimum of 10 employees. Five companies used the paper pencil format, the remaining 25 organizations filled in the questionnaire online, using an individualized link.