Satisfaction with Life Index was created by Adrian G. White, an analytic social psychologist at the University of Leicester, using data from a metastudy.It is an attempt to show life satisfaction in different nations. In this calculation, subjective well being correlates most strongly with health wealth and access to basic education.This is an example of directly measuring happiness—asking people how happy they are—as an alternative to traditional measures of policy success such as GDP or GNP. Some studies suggest that happiness can be measured effectively.
This Index, however, is not solely based on directly asking "how people feel", but also on its social and economic development.
Life satisfaction is the way persons evaluate their lives and how they feel about where they are going in the future. It is a measure of well-being and may be assessed in terms of mood, satisfaction with relations with others and with achieved goals, self-concepts, and self-perceived ability to cope with daily life. It is having a favorable attitude of one's life as a whole rather than an assessment of current feelings. Life satisfaction has been measured in relation to economic standing, amount of education, experiences, and residence, as well as many other topics.