How to Measure Happiness
How to Measure Happiness by Ellen Dreezens:
Lyubomirsky, S., & Lepper, H. S. (1999). A measure of subjective happiness: preliminary reliability and construct validation. Social Indicators Research, 46(2), 137–155.
Diener, E. (Ed.). (2009). Social indicators research series: Vol. 39. Assessing well-being: The collected works of Ed Diener. Springer Science + Business Media. https://doi.org/10.1007/978-90-481-2354-4