Quality of human life social lossWhy the quality of human life can not be measured by GDP ( gross domestic product) statistic method only. There have been numerous attempts to construct alternative, non monetary indices of social and economic wellbeing by combining in a single statistic a variety of different factors that are thought to influence quality of human life. The main problem in all these measures is selection bias in the factors that are chosen to assess quality of life and, even more seriously in assigning weights to different indicators ( measured on a comparable and meaningful scale) to conclude a single synthetic measure. Substantive meaning and prices are the objective weights ( although there are also very big problems in estimating the purchasing-power partities that have to used instead of market exchange rates in order to express countries' incomes in the same currency). However, some researchers have showed that human rights to identify the factors that need to be included in a quality of life measure. But, even if accepted as a starting point, that still does not point to clear to indicators or how which are to be weighted. So, a technocratic and unsatisfying device that is sometimes used is to recort to " expert opinion". How to use life satisfaction surveys to measure human quality of life? Some researchers had been carrying on researching a methodologically improved and more comprehensive measure of qualify of life satisfaction surveys. Surveys of life satisfaction is as opposed to surveys of the related concept of happiness, are preferred for a number of reasons, such as GDP statistic method. These surveys ask people the simple question of how satisfied who are with their lives in general. A typical question is on the four point scale used to the surveys studies. For example, on the whole are you very satisfied, fairly satisfied, not vey satisfied, or not at all satisfied with the life you lead? The results of the surveys have been attracting growing interest in recent years. Despite a range of early criticism, such as cultural non-comparability, the effect of language differences across countries, psychological factors distorting responses, tests have disproved as migitated most concerns. One objection is that responses to surveys don't adequately reflect how people really feel about their life. However, responses to questions about life satisfaction tend to be promoted, non-response rates are very low. This simple measure of life satisfaction has been found to correlate highly with more sophisticated test ratings by others who know the individual, and behavioral measures. The survey results have on the whole proved far more reliable and information then might be expected to measure quality of life.Another criticism is that life-satisfaction responses reflect the dominant view on life, rather than actual quality of life in a country. So, life satisfaction is seen as a judgement that depends on social and culturally aspects, but this relativism is disproved by the fact that people in different countried report similar criteria as being important for life satisfaction, and by the fact that most differences in life satisfaction across countries can be explained by differences in objective circumstances. In addition, it has been found that the responses of immigrants in a country are much closer the level of the local population than to responses in their motherland.