Correlational finding on Happiness and subject: Student taylored instruction

StudyOECD (2017): study CO 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, Colombia, 2017
SampleProbability multi-stage random
Non-Response
Respondents N =11795
Correlate
Author's labelAdaptive instruction
Page in Source 251 +TableIII.3.11,p.289
Our classificationStudent taylored instruction
Operationalization
Student report of teacher behavior in science lessons:
a:  the teacher adapts the lesson to my class needs and 
knowledge
b: the teacher provides individual help when a student 
has difficulties understanding a topic or task
c: the teachers changes the structure of the lesson on 
a topic that most students find difficult to understand

1 never or almost never
2 in some lessons
3 in many lessons
5 in every or almost every lesson
Observed Relation with Happiness
Happiness
Measure		StatisticsElaboration/Remarks
C-BW-c-sq-l-11-eDM=- ns
Average happiness           Average adaptive 
in school                   instruction

50% above national average:   +0,01
50% below national average:   +0,06
               -difference:   -0,05

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