Correlational finding on Happiness and Perceived usefullness of one's life
Subject code: M05ab01

StudyRyff (1989): study US 1984
TitleHappiness Is Everything, or Is It? Explorations on the Meaning of Psychological Well-Being.
SourceJournal of Personality and Social Psychology, 1989, Vol. 57, 1069 - 1081
PublicAdults, USA, 198?
SampleNon-probability purposive-quota sample
Respondents N =321

Author's labelPurpose in life
Page in Source 1073
Our classificationPerceived usefullness of one's life, code M05ab01
Self report on 16 positive and 16 negative statements. 
Each rated on a 6-point scale ranging from strongly 
agree to disagree. 
High scorers have goals in life and a sense of 
directedness; feel there is meaning to present and past 
life; hold beliefs that give life purpose; have aims 
and objectives for living.
Low scorers lack a sense of meaning in life; have few 
goals or aims, lack sense of direction; do not see 
purpose of past life; have no outlook or beliefs that 
give life meaning.
Observed distributionYoung adults: women (m=94.92, sd=13.38), men (m=94.80, sd=11.93) Middle aged adults: women (m=95.47, sd=17.18), men (m=97.68, sd=16.20) Older adults: women (m=88.58, sd=16.14), men (m=92.92, sd=14.84)
Error Estimatesalpha=.90 Test-retest reliability between 6 week period (n=117)=.82

Observed Relation with Happiness
A-BB-cm-mq-v-2-ar=+.42 p < .001

Appendix 1: Happiness measures used
CodeFull Text
A-BB-cm-mq-v-2-aSelfreport on 10 questions:

During the past few weeks, did you ever feel ....? (yes/no)
A Particularly exited or interested in something?
B So restless that you couldn't sit long in a chair?
C Proud because someone complimented you on something
you had done?
D Very lonely or remote from other people?
E Pleased about having accomplished something?
F Bored?
G On top of the world?
H Depressed or very unhappy?
I That things were going your way?
J Upset because someone criticized you?

Answer options and scoring:
yes = 1
no = 0
-Positive Affect Score (PAS): A+C+E+G+I
-Negative Affect Score (NAS): B+D+F+H+J
-Affect Balance Score (ABS): PAS minus NAS
Possible range: -5 to +5

Name: Bradburn's 'Affect Balance Scale' (standard version)

Appendix 2: Statistics used
rPRODUCT-MOMENT CORRELATION COEFFICIENT (Also "Pearson's correlation coefficient' or simply 'correlation coefficient')
Type: test statistic.
Measurement level: Correlate: metric, Happiness: metric
Range: [-1; +1]

r = 0 no correlation ,
r = 1 perfect correlation, where high correlate values correspond with high happiness values, and
r = -1 perfect correlation, where high correlate values correspond with low happiness values.
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.