Upward Spirals of Gratitude and Positive Affect in Daily Life: a Time-lagged Ecological Assessment Study

The sample consisted of 106 participants (<i>M</i><sub>age</sub><i> </i>= 39, <i>SD</i><sub>age</sub><i> </i>=15, range 18 – 65) among which 43 men (41%), that completed on average 46 (68%) out of 70 diary assessments (<i>SD</i> = 12; <i>Min</i> = 23, <i>Max</i> = 70), resulting in a total of 4,870 observations.