Table 1 Overview of methods used for validation of SeMaS
Type of validation | Method |
|---|---|
Content validity | Literature review |
Focus group interviews | |
Face validity | Focus group interviews |
Stakeholders group | |
Criterion validity | Calculation of PPV, NPV and correlations of SeMaS using the validated questionnaires as ‘golden standard’ |
(Convergent) Construct validity (hypothesis testing) | Correlation of SeMaS with PAM-13 |
Reliability: internal consistency | Crohnbach’s alpha |