This study is anchored on Veenhoven's (2000) fourfold matrix of the qualities of life- 1) livability of the environment, 2) life-ability of the individual, 3) external utility of life, and 4) inner appreciation of life- all of which provide necessary conditions for wellbeing, quality-of-life-, and happiness and on Diener's (2018) contention that in general, people are happy if they think they are happy and that they are the best judge of whether they are in fact happy or not, which if measured, he labels as 'Subjective Well being' (SWB).

Veenhoven's (2000) asserted that livability of the environment has something to do with the living conditions or habitability of the environment which economists refer as 'welfare' and to others, 'level of living.' This quality has something to do with the outer chances such as the safety of the place and other conditions that provide human beings chances to a convenient and/or comfortable living. Another quality of life is life-ability of the individual. It denotes inner life chances- the abilities he possesses to cope with the problems and/or challenges he would be encountering while living in the environment. External utility of life, on the other hand, is a life-result which refers to the individual's usefulness to their surroundings without them knowing. Finally, the appreciation of life- as a quality of life indicates the individual’s perceived appreciation on the quality life he is living, commonly referred as SWB, life satisfaction, and happiness.

Putting it in another way, Diener (2018) contended that there are three major components to SWB. These are positive affect (pleasurable feelings), negative affect (painful feelings), and life satisfaction. The first two constitute the emotional or affective components of SWB while the last is its judgmental or cognitive component, having the contention that only the individual can assess the conditions he has.