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Correlational findings

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 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

Happiness Measure Statistics Elaboration / Remarks O-HP-g-mq-v-5-a tau = +              Average grade
Happiness    T1           T2            T3
T1       +.11 (01)    +.12 (001)    +.07 (ns)
T2       +.09 (05)    +.13 (001)    +.03 (ns)
T3       +.06 (ns)    +.08 (05)     +.02 (ns)
T4       +.02 (ns)    +.06 (ns)     +.02 (ns)
T1:1966, T2:1968, T3:1969, T4:1970