# Correlational findings

## Study OECD (2017): study DO 2015

Public
15-16 aged, secundary school students, Dominican Republic, 2017
Survey name
IN-PISA 2015
Sample
Respondents
N = 4740
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                      8,20
2                      8,49
3                      8,61
4                      8,67
5                      8,71
6                      8,66
7                      8,57
8                      8,39
9                      8,40
10                     8,30

difference 10-1:      +0,09
O-SLW-c-sq-n-11-b = - ns Score quarter       Mean Happiness
Bottom                  8,40
Second                  8,68
Third                   8,56
Top                     8,36

difference Top-Bottom: -0,04