1 = Younger cohort
2 = Older cohort

Site numeric code
10 = Sintra
01 = Ottawa
11 = Suzhou
02 = Houston
03 = Bogota
04 = Manizales
06 = Helsinki
07 = Moscow
08 = Istanbul
09 = Daegu

Test language 3-letter code-teacher
SPA = Spanish
ITA = Italian
FRE = French
SWE = Swedish
ENG = English
CHI = Chinese
FIN = Finnish
KOR = Korean
TUR = Turkish
RUS = Russian
PRT = Portugese

Total time spent (minutes) - Teacher Questionnaire
999999 = Missing (missing end date)

Teacher - Gender
1 = Female
2 = Male
3 = Other/In another way
4 = Prefer not to say
7 = N/A
8 = Missing by design
9 = Omitted

Teacher - Age
9997 = N/A
9998 = Missing by design
9999 = Omitted

Teach at another school
1 = No
2 = Yes
7 = N/A
8 = Missing by design
9 = Omitted

Employment Status for all teaching positions taken
1 = Full-time (more than 90% of full-time hours
2 = Part-time (71-90% of full-time hours)
3 = Part-time (50-70% of full-time hours)
4 = Part-time (less than 50% of full-time hours)
7 = N/A
8 = Missing by design
9 = Omitted

Highest level of formal education
1 = Below [ISCED 2011 Level 3]
2 = [ISCED 2011 Level 3]
3 = [ISCED 2011 Level 4]
4 = [ISCED 2011 Level 5]
5 = [ISCED 2011 Level 6]
6 = [ISCED 2011 Level 7]
7 = [ISCED 2011 Level 8]
97 = N/A
98 = Missing by design
99 = Omitted

Initial teaching qualificaitons
1 = Standard programme at a post-secondary institution
2 = In-service programme
3 = Work-based programme
4 = Training in a field other than teaching
5 = Other
7 = N/A
8 = Missing by design
9 = Omitted

Training Opportunity - student-teacher interaction
1 = Not at all
2 = A little
3 = Somewhat
4 = A lot
5 = Very much
7 = N/A
8 = Missing by design
9 = Omitted

Formal training: Teacher programme/initial teacher education
1 = No
2 = Yes, for one week or less
3 = Yes, training lasting a few weeks
4 = Yes, a training lasting in between a month and a year
5 = Yes, an extensive training or programme lasting more than a year
7 = N/A
8 = Missing by design
9 = Omitted

How often: Students given opportunities to explain their ideas.
1 = Never or almost never
2 = Some lessons
3 = Many lessons
4 = Every lesson or almost every lesson
7 = N/A
8 = Missing by design
9 = Omitted

Doing a short task in teams
1 = Never or almost never
2 = Once a year or less
3 = 2-4 times a year
4 = 5-9 times a year
5 = 1-3 times a month
6 = Once a week or more
7 = N/A
8 = Missing by design
9 = Omitted

Students work in groups to come up with a joint solution
1 = Never or hardly ever
2 = In about one-quarter of lessons
3 = In about one-half of lessons
4 = In about three-quarters of lessons
5 = In almost every lesson
7 = N/A
8 = Missing by design
9 = Omitted

Get students to believe they can do well
1 = Not at all
2 = To some extent
3 = Quite a bit
4 = A lot
7 = N/A
8 = Missing by design
9 = Omitted

Evaluate students' achievement in social and emotional skills
1 = No, we don't evaluate these skills
2 = Yes, using informal evaluation
3 = Yes, using formal evaluation
7 = N/A
8 = Missing by design
9 = Omitted

Student learning hindered - truancy
1 = Not all all
2 = Very little
3 = To some extent
4 = A lot
7 = N/A
8 = Missing by design
9 = Omitted

School decisions - staff provided opportunities to participate
1 = Strongly disagree
2 = Disagree
3 = Neither agree nor disagree
4 = Agree
5 = Strongly agree
7 = N/A
8 = Missing by design
9 = Omitted

Student informed - another student destructive behaviours
1 = Never
2 = Less than once a month
3 = 1-3 times a month
4 = Once a week
5 = More than once per week
7 = N/A
8 = Missing by design
9 = Omitted

Satisfaction with your job as a teacher
1 = Very satisfied
2 = Somewhat satisfied
3 = Neutral-neither satisfied nor dissatisfied
4 = Somewhat dissatisfied
5 = Very dissatisfied
7 = N/A
8 = Missing by design
9 = Omitted