while others were only able to mention the
study on the organization's intranet and social media pages (indirect).
From the total of 10,581 participants who completely filled in the survey,
we took a sample of 6230 participants working in 52 health care
organizations: 20 hospitals, 11 mental care facilities, 9 nursing homes
and home health care organizations, and 12 disabled care organizations.
The average number of participants per organization was 153 and varies
from 30 to 593 participants per organization. As there are no standards
with regard to a minimum number of employees necessary to calculate
an organizational climate measure, we chose to set the minimum number
of employees to 30, which resulted in a sample of 52 organizations.
This is above the threshold set by Maas and Hox (2005), who show that
a sample of 50 or more at level two is a sufficient sample size for accurate
multilevel estimation. Our sample includes employee