Correlate as named by investigatorPeople investigatedFinding
Enjoyment of previous day
21+ aged, general public, USA, 1959
General goodness of previous day compared to an average day
Fulltime employed and long-term unemployed, Germany, 2008
Negative feelings
15+ aged, general public, 132 nations, 2005-2006
Positive feelings
15+ aged, general public, 132 nations, 2005-2006