Seventy of the companies that participated in the company-level survey further participated in the employee-level survey. Among these 70 companies, all employees of those companies employing 50 or fewer people received the survey questionnaires. For those companies employing 51 or more people, a random sample of 50 employees in
each company received the survey questionnaires. This cutoff point (companies employing 50 or fewer employees vs. more than 50 employees) was based on the European Union’s definition of micro- and small-sized companies (employing no more than 50 people) versus medium-sized and large companies (employing more than 50 people; European Commission, 2013). This sampling method has also been used in previous studies in Finland (e.g., Tuomi et al., 2004).