Sex of child
1 = Male
2 = Female
9 = Not answered

Where child born recoded
1 = Northern Ireland
2 = GB or Ireland
3 = Somewhere else

Identity recoded
1 = Northern Irish
2 = Ulster
3 = Irish
4 = British
5 = Bangladeshi,Chinese,Indian,Irish Traveller,Lithuanian,Pakistani,Polish,Portuguese
6 = Other
7 = Don't know

Do you have a long-term disability, illness or medical condition?
1 = Yes
2 = No
3 = Not sure
9 = Not answered

Who child lives with recoded
1 = My mum and dad in the same house
2 = My mum for all or most of the time
3 = My mum for half of the time and my dad for half of the time
4 = My dad for all or most of the time or somebody else

Does your family own a car, van or truck?
1 = Yes, one
2 = Yes, two or more
3 = No
4 = I don't live with a family
9 = Not answered

Number of times travel on holiday with family in last 12 monhts?
-1 = Skip, not live with a family
1 = Not at all
2 = Once
3 = Twice
4 = More than twice
9 = Not answered

How many computers or laptops does your family own?
-1 = Skip, not live with a family
1 = None
2 = One
3 = Two
4 = Three or more
9 = Not answered

Who looks after you most days when school finishes?
1 = A parent or guardian
2 = Another relative
3 = A childminder
4 = A neighbour or someone else who is not a relative
5 = Afterschool club
6 = Someone else
9 = Not answered

Reason for after school care
-1 = Skip, looked after by parents
1 = Because my parent(s) are at work
2 = Because I want to
3 = To be with my friends
4 = Because I have nowhere else to go
5 = Something else
9 = Not answered

Happiness with after school care
-1 = Skip, looked after by parents
1 = Completely unhappy
2 = A bit unhappy
3 = neither happy nor unhappy
4 = A bit happy
5 = Completely happy
9 = Not answered

After school activity: sport
1 = Identified
2 = Not identified

Happiness at school
1 = Mostly happy
2 = Mostly unhappy
3 = I can't decide
9 = Not answered

Type of transfer test
-1 = Skip, not do transfer test
1 = Common Entrance Assessment (AQE)
2 = Multiple choice GL
3 = Both types
4 = I don't know which type they were
9 = Not answered

Result on Common Entrance Assessment (AQE)
-2 = Skip, not do this type of test
-1 = Skip, not do transfer test
1 = 113 or higher
2 = 106 to 112
3 = 98 to 105
4 = 88 to 97
5 = 87 or less
6 = Don't want to say
9 = Not answered

Result on GL tests
-2 = Skip, not do this type of test
-1 = Skip, not do transfer test
1 = A
2 = B1
3 = B2
4 = C1
5 = C2
6 = D
7 = Don't want to say
9 = Not answered

Do your parents/guardians encourage you to like school?
1 = Yes, all the time
2 = Yes, most of the time
3 = Yes, sometimes
4 = No, they never do
5 = Don't know
9 = Not answered

Most helpful thing your parent or guardian did to help with your education
1 = Helping me with my homework
2 = Speaking to my teachers
3 = Getting involved with school
4 = Reading books with me
5 = Taking me to places like museums/libraries
6 = Something else
7 = I don't know
9 = Not answered

1 'Do you have your own personal mobile phone?'
1 = Yes
2 = No
9 = Not answered

Is your phone a smart phone?
-1 = Skip, not applicable
1 = Yes
2 = No
3 = I don't know
9 = Not answered

Do teachers look at what you are doing on the internet?
1 = Yes, all the time
2 = Yes, most of the time
3 = Yes, sometimes
4 = No, they never do
5 = I don't know
9 = Not answered

How often do you use the internet at home?
1 = Almost every day
2 = At least once or twice every week
3 = At least once every month
4 = Less often than once a month
5 = Never
6 = We don't have the internet at home
9 = Not answered

Access internet at home on a phone
-1 = Skip, not use internet at home
1 = Identified
2 = Not identified

Do parents or guardians look at what you are doing on internet at home?
-1 = Skip, not use internet at home
1 = Yes, all the time
2 = Yes, most of the time
3 = Yes, sometimes
4 = No, they never do
5 = I don't know
9 = Not answered

Have parents or guardians set rules about use of internet?
-1 = Skip, not use internet at home
1 = Yes
2 = No
3 = Not sure
9 = Not answered

Taught internet safety by parent or guardian
-1 = Skip, not taught internet safety
1 = Identified
2 = Not identified

Upset or worried by something on internet in last year?
1 = Yes
2 = No
3 = I can't remember
9 = Not answered

Upset by internet: left website/turned off computer
-1 = Skip, not upset by anything on internet
1 = Identified
2 = Not identified

How often on social media sites?
1 = At least once a day
2 = 2 or 3 times a week
3 = Once a week
4 = Less often than once a week
5 = I don't use these types of websites
6 = I don't know
9 = Not answered

Can your page or profile be seen by other people?
-1 = Skip, from INTSMED
1 = It can only be seen by my friends and no one else
2 = It can only be seen by my friends and their friends
3 = It can be seen by anyone
4 = It can't be seen
5 = I don't know
9 = Not answered

School listens to what I have to say about what we do in class
1 = Never
2 = Seldom
3 = Quite often
4 = Very often
5 = Always
9 = Not answered

1 = Enough money for ordinary things and special things
2 = Enough money for ordinary things but not some special things
3 = Not enough money for ordinary things or special things
4 = I don't know
5 = I don't live with a family
9 = Not answered

In past year, family found it difficult to afford school uniform
-1 = Skip, school not have uniform
1 = Yes
2 = No
3 = Don't know
9 = Not answered

In past year, family found it difficult to afford school books and materials
1 = Yes
2 = No
3 = Don't know
9 = Not answered

In past year, family found it difficult to afford day trips/events during school day
-1 = Skip, school not do this
1 = Yes
2 = No
3 = Don't know
9 = Not answered

In general, how would you say your health is?
1 = Excellent
2 = Very good
3 = Good
4 = Fair
5 = Poor
9 = Not answered

In last week, have you felt fit and well?
1 = Not at all
2 = Slightly
3 = Moderately
4 = Very
5 = Extremely
9 = Not answered

In last week, have you felt sad?
1 = Always
2 = Often
3 = Sometimes
4 = Seldom
5 = Never

How regularly do you have breakfast?
1 = Every day
2 = Most days
3 = Once or twice a week
4 = Never
9 = Not answered

Where do you mostly have breakfast?
-2 = Skip, from NUTRIT2
-1 = Skip, from NUTRIT1
1 = At home, where I normally live
2 = On the way to school
3 = In school before school starts (eg breakfast club)
4 = In school at first break time
5 = Somewhere else
9 = Not answered

Main reason for going to a breakfast club
-2 = Skip, not go to breakfast club
-1 = Skip, from NUTRIT1
1 = So my parent(s) can get into work on time)
2 = Because I want to go
3 = So I can eat breakfast
4 = To be with my friends
5 = Don't know
9 = Not answered