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

Average grade

Our Classification

Operationalization

Respondent reported his average grade for all his courses for the year at T1, T2 and T3:
10 = failure, E or F (59% or less);
22 = D- (60 - 62); 25 = D  (63 - 66);
28 = D+ (67 - 69); 32 = C- (70 - 72);
35 = C  (73 - 76); 38 = C+ (77 - 79);
42 = B- (80 - 82); 45 = B  (83 - 86);
48 = B+ (87 - 89); 52 = A- (90 - 92);
55 = A  (93 - 96); 58 = A+ (97 - 100)

Observed Relation with Happiness