Study Bachman et al. (1978): study US 1966
- Public
 - Public highschool boys followed 8 years from grade 10, USA, 1966-74
 - Sample
 - Respondents
 - N = 1628
 - Non Response
 - 2.8% at T1, 17.2% at T2, 21.0% at T3, 28.9% at T4, 28.5% at T5
 - Assessment
 - 
        Multiple assesment methods                    
Interviews, tests and questionnaires 
Correlate
- Authors's Label
 - Having plans to go to college
 - Our Classification
 - 
            
 - 
                        
 - Operationalization
 - Respondent was asked a series of questions about his future plans at; if he replied he would go to college or graduate school in answer to any one of the questions, he was coded as having college plans. 
1 = college plans
0 = no college plans;
Assessed at T1, T2 and T3 
Observed Relation with Happiness
Happiness T1 T2 T3
T1 +.08 (05) +.09 (05) +.13 (001)
T2 +.04 (ns) +.10 (01) +.11 (01)
T3 +.01 (ns) +.06 (ns) +.09 (05)
T4 -.00 (ns) +.02 (ns) +.04 (ns)
T1:1966, T2:1968, T3:1969, T4:1970