Correlational finding on Happiness and subject: Involved in dating

StudyDiener et al. (1995b): study US 1993
TitlePhysical Attractiveness and Subjective Well-Being.
SourceJournal of Personality and Social Psychology, 1995, Vol. 69, 120 - 129
PublicCollege students, USA 199?
SampleNon-probability sample (unspecified)
Respondents N =146

Author's labelNumber of dates
Page in Source 126
Our classificationInvolved in dating
Number of dates in 3 months

Observed Relation with Happiness
             Number of dates 
males        M       SD
- happy      11.8     12.0 
- unhappy    7.2      11.4
- happy      16.0     11.7 
- unhappy    12.6     10.4

Appendix 1: Happiness measures used
CodeFull Text
M-FH-g-sq-v-10-aSelfreport on single question:

Use the list below to answer the following question: IN GENERAL, HOW HAPPY OR UNHAPPY DO YOU USUALLY FEEL? Check the one statement that best describes your average happiness.
10 extremely happy (feeling ecstatic, joyous, fantastic!)
9 very happy (feeling really good and elated!)
8 pretty happy (spirits high, feeling good)
7 mildly happy (feeling fairly good and somewhat cheerful)
6 slightly happy ( just a bit above neutral)
5 slightly unhappy (just a bit below neutral)
4 mildly unhappy (just a bit low)
3 pretty unhappy (somewhat "blue", spirits down)
2 very unhappy ( depressed, spirits very low)
1 extremely unhappy (utterly depressed, completely down)

Name: Fordyce's overall happiness item.

Appendix 2: Statistics used
Type: descriptive statistic only.
Measurement level: Correlate: dichotomous, Happiness: metric
Range: depending on the happiness rating scale of the author; range symmetric about zero.

Meaning: the difference of the mean happiness, as measured on the author's rating scale, between the two correlate levels.
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.