Study Bachman et al. (1970): study US 1966
- Public
 - Public highschool boys followed 3 years from grade 10, USA, 1966-69
 - Survey name
 - Unnamed study
 - Sample
 - Respondents
 - N = 1799
 - Non Response
 - 2.8% incomplete information in 1966
 - Assessment
 - 
        Multiple assesment methods                    
Interviews, test, teacher ratings. 
Correlate
- Authors's Label
 - Need for self-utilization
 - Our Classification
 - 
            
 - 
                        
 - Operationalization
 - 9-item index containig closed questions on desiring to use one's skills (see Long, 1967).