Samenvatting

Today’s world of work is characterized by high performance needs and demanding work hours. In order to remain competitive, organizations seek ways to promote a healthy and motivating work design for attracting and retaining a skilful and productive workforce. The rising number of dual-earner families calls for tools that enable a proper balance between work and family life. At the same time, modern information and communication technologies (ICTs) permit greater flexibility in the organization of work hours and work location. This context has drawn attention to worktime control (i.e., an employees’ possibility to control the duration, position and distribution of worktime; WTC) as a potential tool to improve or uphold employees’ health, work-nonwork balance, and work motivation in the demanding world of work. The aim of the current dissertation was to empirically examine the prevalence, associations and effects of WTC with regard to employees’ work-nonwork balance, health and well-being, and jobrelated outcomes (e.g., job satisfaction, job motivation, or performance).