Correlational finding on Happiness and subject: Change involvement in sports

StudyPettay (2008a): study US 2006
TitleHealth Behaviors and Life Satisfaction in college Students.
SourcePhD Thesis, Kansas State University, 2008, USA
PublicUniversity students, Illinois, USA, 2007
SampleSampling not reported
Non-Response
Respondents N =796

Correlate
Author's labelStage of change in physical activity frequancy
Page in Source 57
Our classificationChange involvement in sports
Operationalization
Self reports on questions about physical activity (full 
text not reported)
1: precontemplation
2: contemplation
3; preparation
4: action
5: maitenance
Observed distribution1: 4%, 2: 24%, 3: 20%, 4: 19%, 5: 33%
Remarks
Combination of the following questions
A: I currently exercise (yes/no)
B: I intend to excersice in the next 6 months (yes/no)
C: I currently excersise regularly (yes/no)
D: I have excercised regularly for the past 6 months 
(yes/no)
1 = A no + B no
2 = A no + B yes
3 = A no + C no
4 =  A yes + C yes + D no
5 = A yes + C yes +, E yes

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-Sum-u-mq-v-5-bcMW=+ ns
2 (vs 1)
O-Sum-u-mq-v-5-bcMW=+ ns
3 (vs 2)
O-Sum-u-mq-v-5-bcMW=+ ns
4 (vs 3)
O-Sum-u-mq-v-5-bcMW=+ p < .001
5 (vs 4)
O-Sum-u-mq-v-5-bcMW=+ p < .001
5 (vs 1-4)

similar for males and females


Appendix 1: Happiness measures used
CodeFull Text
O-Sum-u-mq-v-5-bcSelfreport on 3 questions:

Using the 1-5 scale below, indicate your agreement with each of the items by placing the appropriate number on the line preceding that item. Please be open and honest in your responding.
A In most ways my life is close to ideal
B The conditions of my life are excellent
C I am satisfied with my life

Answers rated:
5 strongly agree
4 slightly agree
3 neither agree nor disagree
2 slightly disagree
1 strongly disagree

Computation:( A+B+C)/3

Name: Shortened Diener's Satisfaction with Life Scale (SWLS)


Appendix 2: Statistics used
SymbolExplanation
MWWILCOXON (MANN-WHITNEY) TWO SAMPLE TEST
Type: statistical procedure.
Measurement level: Correlate: dichotomous, Happiness: ordinal
Symbol test statistic: W (Wilcoxon) or U (Mann-Whitney).
Relationship: W = U + n1(n1 + 1), where n1 and n2 = Ne - n1 , while n1 <= n2, are the sizes of the two samples.
Range U [ 0; n1n2 ] and W [ n1(n1 + 1); n1(n1+ 2n2 +1].

Meaning:
At the limit values of U and W there is the strongest possible association.
U = n1n2 <-> W = n1(Ne + 1) no association.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl