# Correlational findings

## Study OECD (2017): study CZ 2015

Public
15-16 aged, secundary school students, Czech Replublic, 2017
Survey name
IN-PISA 2015
Sample
Respondents
N = 5587
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 = - ns Talk with friends before school
Yes               M = 7,04
No                M = 7,07
- difference         -0,02
O-SLW-c-sq-n-11-b = + ns Talk with friends after school:
Yes               M = 7,10
No                M = 6,85
- difference         +0,25
O-SLW-c-sq-n-11-b = + Talk with friends before or after school:
All        Boys       Girls
Yes        M= 7,08       7,41       6,75
No         M= 6,88       7,15       6,59
Difference   +0,20(.05) +0,26(.05) +0,16(ns)