- 46+ aged whites, North Carolina, USA, followed from 1968 to 1976.
- N = 375
- Non Response:
Whole-day interviews, tests and examinations. Rounds in longitudinal study; examined period: 1968/70 N=502, 1970/72 N= 443, 1972/74 N= 378, 1974/76 N= 375
- Authors's label
- T1 internal control
- Our Classification
- Index containing four pairs of statements e,g, "some of the good and some of the bad things in my life have happened by chance" (external control).
"What happened to me has been my own doing" (internal control).
Each S was asked which one of each pair is more true for him.
(from the Internal-External Control of Reinforcement Scale; see Jesson at al. (1968).
Assessed at T1.
Observed Relation with Happiness
Males : r = (ns)
Females: r = +.14 (05)
Females: r = +.19 (05)