1.
Results from COVID Stress Scales item response models with parameter constraints across Polish and Dutch samples supported by measurement invariance tests.
2.
S1 Data -
Overview of the previous studies on LoS.
Sample demographics.
Variables in the models.
Unstandardized regression coefficients.
CoCB-NL item normal distribution.
3.
4.
5.
Dutch language version of the CoCB-NL.
Content validity assessment on comprehensibility.
Confirmative factor analysis and internal consistency of the four-factor model.