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Correlational findings

Study Blauw (2014a): study NL 2012

Public
Female university students, members of a sorority, The Netherlands, followed 1 year 2012-2013
Survey name
Unnamed study
Sample
Respondents
N = 170
Non Response
1%
Assessment
Questionnaire: Paper & Pencil Interview (PAPI)
Happiness assessed at T1: before joining a year-club T2: one year afte:

Correlate

Authors's Label
Happiness of friends:: Club mate's outcome
Our Classification
Remarks
Data cohort 2012 only. N = 69
Operationalization
Happiness of club members at:
T1: Before joining the club
T2: One year after joining the club;
       a: Average happiness of all members
       b; Happiness of friends only

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks C-BW-c-sq-l-11-c OLRC = -.01 ns T1: Before joining the club C-BW-c-sq-l-11-c OLRC = -.20 ns T2: One year after joining the club C-BW-c-sq-l-11-c OLRC = +.56 p < .01 T2: interaction happiness of friends and clubmembers

OLRCs controled for
- age
- number oif friends
- higschool level
- income

Interpretation: no selection (homophily) but contagation (induction)