Correlational finding on Happiness and Studying
Subject code: A02ac11

StudyOECD (2017): study RU 2015
TitlePISA 2015 Results. Students' Well-Being. Volume III.
SourceOECD Publishing, 2017, Paris, France
URLhttp://www.oecd-ilibrary.org/education/pisa-2015-results-volume-iii_9789264273856-en
Public15-16 aged, secundary school students, Russia, 2017
SampleProbability multi-stage random
Non-Response
Respondents N =6036

Correlate
Author's labelTime per week spend learning in regular lessons
Page in Source 247+TableIII.3.10AnnexB.p514
Our classificationStudying, code A02ac11
Operationalization
Selfreport on 3 question about 4 subjects:
- How many class periods per week are you typically 
required to attend for: language / mathematics/ 
science?
- In a normal, full week at school, how may class 
periods per week are you required to attend in total? 
(slider range: 0 - '80 or more')
- How many minutes, on average, are there in a class 
period? (slider range: 0 - '120 or more')
Observed distributionquartiles presented, M hours= 26 SD= 5
Remarks
Learning time in test language regular lessons was 
computed by multiplying the number of minutes on 
average in the test language class by numberof test 
language class periods per week. Comparable indices 
were computed for mathematics and science. Learning 
time in total was computed using information about the 
average minutes in a class period in relation to 
information about the number of class periods per week 
attended in total.
For convenience purposes, the information on learning 
time has been transforme into hours

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
C-BW-c-sq-l-11-eDM=- ns
4            M= 7,69
3            M= 7,86
2            M= 7,80
1            M= 7,70

4-1 difference -0,01


Appendix 1: Happiness measures used
CodeFull Text
C-BW-c-sq-l-11-eSelfreport on single question:

Here is a picture of a ladder. The top of the ladder '10' represents the best possible life for you and the bottom '0' is the worst possible life for you. In general , where on the ladder do you feel you stand at the moment? Tick the box next to the number that best describes where you stand
10 best possible
9
8
7
6
5
4
3
2
1
0 worst possible life


Appendix 2: Statistics used
SymbolExplanation
DMDIFFERENCE of MEANS
Type: descriptive statistic only.
Measurement level: Correlate: dichotomous, Happiness: metric
Range: depending on the happiness rating scale of the author; range symmetric about zero.

Meaning: the difference of the mean happiness, as measured on the author's rating scale, between the two correlate levels.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl