Robuta

https://pubmed.ncbi.nlm.nih.gov/12780478/?dopt=Abstract
The GHQ-12 showed good structural characteristics and was appropriately correlated with other measures of related traits. Overall, the GHQ-12 appears to be a...
general health questionnairepsychometric propertiesvalidity
https://en.wikiversity.org/wiki/Maritime_Health_Research_and_Education-NET/Google_Forms_Questionnaires/General_Health_Questionnaire_(GHQ-12)
maritime healthgoogle formsresearcheducationnet