Happiness measure, code: O-SLL-u-sq-v-4-i

Selfreport on single question:

On the whole, how satisfied are you with the life you lead?
1 unsatisfied
2 slightly unsatisfied
3 slightly satisfied
4 satisfied
Focus, O-SLL Overall: Satisfaction with Life one Leads
Time frame, u time unspecified
Mode, sq 1 question
Scale type, v verbal scale Range = 4
Used in studies