Set-point theory is the main research paradigm in the field of subjective well-being (SWB). It has been extended and refined for 30 years to take in new results. The central plank of the theory is that adult set-points do not change, except temporarily in the face of major life events. There was always some "discordant data," including…

Children face many important changes in the first eight years of life, including different learning centres, social groups, roles and expectations. Their ability to adapt to such a dynamic and evolving environment directly affects their sense of identity and status within their community over the short and long term. In particular, the key turning…