Happiness measure, code: A-CA-m-fi-n-2-a

Automatic analysis of facial expression for indication of pleasant affect

No valid indicator of happiness if used once, but acceptable if used in multiple moment onservation of individuals, or in aggregates of one-time individual observations
Focus, A-CA Affect: Cheerful Appearance
Time frame, m momentary (now)
Mode, fi focussed interview
Scale type, n numeric scale Range = 2
Used in studies