Study Symonds (1937): study US 1935
- Public
 - High school pupils and college students, USA, 193?
 - Sample
 - Respondents
 - N = 1651
 - Non Response
 - -
 - Assessment
 - Questionnaire: Paper & Pencil Interview (PAPI)
 
Correlate
- Authors's Label
 - Being interested in mental hygiene
 - Our Classification
 - 
            
 - 
                        
 - Operationalization
 - Closed question