Vallejo Nocturno 2014- predictions
The life-course variability of subjective well-being – how stable their happiness was over the life course – was negatively associated with its mean; happier individuals were more stable in their happiness. Men were significantly more stable in their happiness than women. The life-course variability was negatively associated with childhood general intelligence and all Big Five personality factors, except for Agreeableness. In a multiple regression analysis, childhood general intelligence emerged as the strongest predictor of the life-course variability of happiness. More intelligent children on average tended to grow up to be more stable in their subjective well-being throughout adulthood.
But why were more intelligent individuals more stable in their happiness than less intelligent individuals? The available data allowed me tentatively to test and provisionally rule out several hypotheses. The analyses presented above appeared to suggest that it was not because they were more educated and made more money (even though they were more educated and did make more money); it was not because they were healthier (even though they were); it was not because they were more stable in their marital status (even though they were); it was not because they were happier (even though they were); it was not because they were better able to assess their own level of happiness more accurately (even though they were better able to predict their level of happiness in the future); and it was not because they were better able to recall their previous responses to the same question or because they were more honest in their survey responses (even though they were both). The available evidence presented above seemed to suggest that these might not have been entirely the reasons that more intelligent individuals were more stable in their life satisfaction over the life course; however, I did not know what was. Why more intelligent children might have grown up to be more stable in their happiness in their adulthood remained a mystery.