# Correlational findings

## Study OECD (2017): study PT 2015

Public
15-16 aged, secundary school students, Portugal, 2017
Survey name
IN-PISA 2015
Sample
Respondents
N = 7325
Non Response
Assessment
Questionnaire: Conputer Assisted Web Interview (CAWI)

## Correlate

Authors's Label
Talking with friends
Our Classification
Related specification variables
Operationalization
Selfreport on 2 questions:
- On the most recent day you attended school, did you before going  to school meet friends or talk to friends on the phone?
1 yes
0 no
- On the most recent day you attended school, did you after leaving school meet friends or talk to friends on the phone?
1 yes
0 no

## Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLW-c-sq-n-11-b = + p < .05 Talk with friends before school
Yes               M = 7,42
No                M = 7,23
- difference         +0,20
O-SLW-c-sq-n-11-b = + p < .05 Talk with friends after school:
Yes               M = 7,43
No                M = 7,14
- difference         +0,29
O-SLW-c-sq-n-11-b = + Talk with friends before or after school:
All        Boys      Girls
Yes         M = 7,40       7,67      7,15
No          M = 7,16       7,43      6,78
Difference     +0,24(.05) +0,24(ns) +0,37(.05)