Study OECD (2017): study CR 2015
- Public
 - 15-16 aged, secundary school students, Costa Rica, 2017
 - Survey name
 - INT-PISA 2015
 - Sample
 - Respondents
 - N = 6866
 - Non Response
 - Assessment
 - Questionnaire: Conputer Assisted Web Interview (CAWI)
 
Correlate
- Authors's Label
 - Exposure to bullying
 - Our Classification
 - 
            
 - 
                        
 - Distribution
 - quartiles
 - Operationalization
 - Self report on 6 statements about incidence  of:
a: other students left me out of things on purpose
b: other students made fun of me
c: I was threatened by other students
d; other students took away or destroyed things that belonged to me
e; I got hit or pushed around by other students
f: other students spread neasty rumours about me
4 once a week or more
3 a few times a month
2 a few times a year
1 never or almost never 
Observed Relation with Happiness
4 most bullied M = 7,41
3 M = 8,06
2 M = 8,69
1 least bullied M = 8,65
4-1 difference -1,24
not frequently bullied 5,7
frequently bullied 19,1
- difference -13,4
D% = -13,8 when controlled for:
- student characteristics
- school characteristics