# 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 =
Non Response
Assessment
Questionnaire: Conputer Assisted Web Interview (CAWI)

## Correlate

Authors's Label
School performance in mathematics
Our Classification
Distribution
Deciles and quartiles
Operationalization
Mathematical performance, for PISA, measures the mathematical literacy of a 15 year-old to formulate, employ and interpret mathematics in a variety of contexts to describe, predict and explain phenomena, recognising the role that mathematics plays in the world. The mean score is the measure. A mathematically literate student recognises the role that mathematics plays in the world in order to make well-founded judgments and decisions needed by constructive, engaged and reflective citizens.

## Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLW-c-sq-n-11-b = + ns Score decile        Mean Happiness
1                      6,97
2                      6,90
3                      6,96
4                      6,99
5                      7,02
6                      7,03
7                      7,06
8                      7,14
9                      7,19
10                     7,26

difference 10-1:      +0,29
O-SLW-c-sq-n-11-b = + ns Score quarter       Mean Happiness
Bottom                 7,28
Second                 7,36
Third                  7,39
Top                    7,42

difference Top-Bottom:+0,14