R's sex
-8 = DK/NA
-1 = IAP
1 = Male
2 = Female

R's age
-8 = DK/NA
-1 = IAP
90 = Age 90 or older

R's marital status
-8 = DK/NA
-1 = IAP
1 = Married
2 = Widowed
3 = Divorced
4 = Separated
5 = Never married
6 = Cohabiting

Number of employees who work for R (if R has any employees)
-8 = DK/NA
-1 = IAP

Part-time or full time (if R is self-employed)
-8 = DK/NA
-1 = IAP
1 = Part-time
2 = Full-time

Whether R has subordinates or not
-8 = DK/NA
-1 = IAP
1 = Yes
2 = No

R's monthly income for the current job (categorical)
-8 = DK/NA
-1 = IAP
0 = No income
1 = Less than 500,000 won
2 = 500,000 ~ 990,000 won
3 = 1000,000 ~ 1490,000 won
4 = 1500,000 ~ 1990,000 won
5 = 2000,000 ~ 2490,000 won
6 = 2500,000 ~ 2990,000 won
7 = 3000,000 ~ 3490,000 won
8 = 3500,000 ~ 3990,000 won
9 = 4000,000 ~ 4490,000 won
10 = 4500,000 ~ 4990,000 won
11 = 5000,000 ~ 5490,000 won
12 = 5500,000 ~ 5990,000 won
13 = 6000,000 ~ 6490,000 won
14 = 6500,000 ~ 6990,000 won
15 = 7000,000 ~ 7490,000 won
16 = 7500,000 ~ 7990,000 won
17 = 8000,000 ~ 8490,000 won
18 = 8500,000 ~ 8990,000 won
19 = 9000,000 ~ 9490,000 won
20 = 9500,000 ~ 9990,000 won
21 = More than ten million won

Whether R has any extra income
-8 = DK/NA
-1 = IAP
1 = Yes
2 = No
7 = Refusal

Spouse's employment status
-8 = DK/NA
-1 = IAP
1 = Regular employee
2 = Temporary employee
3 = Daily employee

R's religious denomination (if R has any religion)
432 = The Presbyterian Church in the Republic of Korea

Political orientation
-8 = DK/NA
-1 = IAP
1 = Very liberal
2 = Somewhat liberal
3 = Neither liberal nor conservative
4 = Somewhat conservative
5 = Very conservative

Frequency of reading the newspaper
-8 = DK/NA
-1 = IAP
1 = Everyday
2 = A few times a week
3 = Once a week
4 = Less than a once a week
5 = Never

Most frequently watched kind of TV program
-8 = DK/NA
-1 = IAP
1 = News and current events
2 = Education-related communication and information gathering
3 = Entertainment
4 = Education and documentary
5 = Sports
77 = OTHER

The most important thing in life
-8 = DK/NA
-1 = IAP
1 = Leisure
2 = Friends
3 = Power
4 = Neighbor
5 = Health
6 = Money
7 = Educational attainment
8 = Religion
9 = Family
10 = Work

The gender of a child that R has the most contact with
-8 = DK/NA
-1 = IAP
1 = With a son
2 = With a daughter
3 = I have no contact with any of my adult children
4 = I have equal contacts with them

A person who R feels the closest (aside from the partner)
-8 = DK/NA
-1 = IAP
1 = A male relative
2 = A female relative
3 = A man who is not a relative
4 = A woman who is not a relative
5 = I don't have a close friend

Frequency of seeing/visiting the closest friend
-8 = DK/NA
-1 = IAP
1 = He/she lives in the same household as I do
2 = Daily
3 = At least several times a week
4 = At least once a week
5 = At least once a month
6 = Several times a year
7 = Less often
8 = Never

Frequency of contacting with the best friend via telephone, letter, fax, or e-mail
-8 = DK/NA
-1 = IAP
1 = Daily
2 = At least several times a week
3 = At least once a week
4 = At least once a month
5 = 5 - Several times a year
6 = 6 - Several times a year
7 = Never

Average number of people whom R makes contacts with per day
-8 = DK/NA
-1 = IAP
1 = 0-4 persons
2 = 5-9
3 = 10-19
4 = 20-49
5 = 50-99
6 = More than 100

First person who R would ask for help when sick
-8 = DK/NA
-1 = IAP
0 = No one
1 = Husband, wife, partner
2 = Father
3 = Mother
4 = Father-in-law
5 = Mother-in-law
6 = Daughter
7 = Daughter-in-law
8 = Son
9 = Son-in-law
10 = Brother
11 = Sister
12 = Brother-in-law
13 = Sister-in-law
14 = Other blood relative
15 = Other in-law relative
16 = Close friend
17 = Neighbor
18 = Someone you work with
19 = Someone you pay to help
20 = Someone at a social service agency
21 = Priest or member of the clergy
22 = Employer
23 = Government or public service agency
24 = A bank or credit union
25 = A private money lender
26 = Family doctor
27 = A psychologist or another professional counselor
28 = A self-help group
29 = OTHER
30 = Emergency call
32 = Boy or girl friend
33 = Acquaintance who is older than R
34 = Acquaintance who is younger than R
35 = Former husband/wife or someone related to

Whether it is a government's responsibility to provide childcare for everyone who wants it
-8 = DK/NA
-1 = IAP
1 = Definitely should be
2 = Probably should be
3 = Probably should not be
4 = Definitely should not be

Favorite TV show
-8 = DK/NA
-1 = IAP
1 = News
2 = Current affairs
3 = Drama
4 = Culture
5 = Movies
6 = Entertainment
7 = Sports
8 = Serious arts
9 = Education
77 = OTHERS
99 = NA

Favorite genre of music
-8 = DK/NA
-1 = IAP
1 = Traditional Korean music
2 = Trot, 'Bbongjjak'
3 = Jazz, blues
4 = Ballad, folk, country
5 = Hip-hop, rap, dance music
6 = Rock, heavy metal
7 = Religious music
8 = Musical
9 = Classical music
77 = OTHER
99 = NA

The most often used method to listen to music
-8 = DK/NA
-1 = IAP
1 = Radio music program
2 = TV music program
3 = CD/LP/cassette tapes
4 = MP3, wma files
5 = On-line music streaming service
77 = OTHER
99 = NA

The most often used method to watch movies
-8 = DK/NA
-1 = IAP
1 = Go to the cinema
2 = Rent video or DVD
3 = Watch on TV
4 = Download online movie file
5 = On-line streaming
77 = OTHER
99 = NA

Whether R uses the high-speed internet
-8 = DK/NA
-1 = IAP
1 = Yes, I use
2 = No, I don't use

Number of children
-8 = DK/NA
-1 = IAP
0 = NONE

Side of hands/wrists/fingers that had pain
-8 = DK/NA
-1 = IAP
1 = Left
2 = Right
3 = Both sides

Duration of pain in hands/wrists/fingers
-8 = DK/NA
-1 = IAP
1 = Less than a day
2 = 1 day - 1 week
3 = 1 week - 1 month
4 = 1 month - 6 months
5 = More than 6 months

How severe was the pain in hands/wrists/fingers
-8 = DK/NA
-1 = IAP
1 = Not very severe
2 = Somewhat severe
3 = Fairly severe
4 = Very severe

Frequency of the pain in hands/wrists/fingers in the last year
-8 = DK/NA
-1 = IAP
1 = 1 time in 6 months
2 = 1 time in 2-3 months
3 = 1 time in 1 a month
4 = 1 time in 1 a week
5 = Every day

Whether R had these pains in hands/wrists/fingers in the last week
-8 = DK/NA
-1 = IAP
1 = No
2 = Yes

What happened due to these pains in hands/wrists/fingers in the last year
-8 = DK/NA
-1 = IAP
1 = Got treated in the hospital
2 = Got medication in the pharmacy
3 = Sick leave or workers' accident insurance
4 = Working suspension
5 = Did not do anything
6 = Tried to use some instruments
7 = Tried to do massage or exercise
77 = Other

Primary purpose of Social Network Service use
-8 = DK/NA
-1 = IAP
1 = To obtain some information or knowledge
2 = To promote communications or build friendship
7 = OTHER

Whether R thinks his/her Social Network Service use is excessive
-8 = DK/NA
-1 = IAP
1 = Yes, very much
2 = Yes, a little bit
3 = Not so much
4 = Not at all

Reason R's mother passed away (if R's mother had passed away)
-8 = DK/NA
-1 = IAP
1 = Old age
2 = Illness
3 = Suicide
4 = Murder
5 = Accident/Disaster
6 = No sure reason
7 = Other

The country where R's father was born
-8 = DK/NA
-1 = IAP
156 = China
410 = Korea
411 = North Korea
608 = The Philippines
643 = Russia
840 = United States

The country where R's mother was born
-8 = DK/NA
-1 = IAP
156 = China
392 = Korea
410 = North Korea
411 = The Philippines
608 = Russia
643 = 643 - United States
840 = 840 - United States

R's influence over the decision regarding how to carry out daily tasks at work
-8 = DK/NA
-1 = IAP
0 = I have no influence
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
10 = I have full control

Desirable form of the government to serve the public interest
-8 = DK/NA
-1 = IAP
1 = Government should be minimized and operated according to market principles.
2 = Government should be restricted except for services such as rails and postal service that the must be carried out by it.
3 = Government involvement should be maximized when it is cooperative with the market or private sectors in their operation.
4 = Government should be actively involved in all -related services.

Frequency of reading books in the free time
-8 = DK/NA
-1 = IAP
1 = Daily
2 = Several times a week
3 = Several times a month
4 = Several times a year or less often
5 = Never

How much free time activities enable R to be the kind of person who R is
-8 = DK/NA
-1 = IAP
1 = Very much
2 = A lot
3 = Somewhat
4 = A little
5 = Not at all interested

Use free time to establish useful contacts
-8 = DK/NA
-1 = IAP
1 = Very often
2 = Often
3 = Sometimes
4 = Seldom
5 = Never

Preference of spending the free time alone or together
-8 = DK/NA
-1 = IAP
1 = Most of time with other people
2 = More with other people than alone
3 = More alone than with other people
4 = Most of time alone

Number of nights stayed outside in the last 12 months
-8 = DK/NA
-1 = IAP
1 = I was not away
2 = 1~5 nights
3 = 6~10 nights
4 = 11~20 nights
5 = 21~30 nights
6 = More than 31 nights

Physical activity that R takes part in the most frequently
301 = Athletics (e.g. running, long-/high-jumping), marathon
302 = Body training (e.g. body-building, artist. gymnastics)
303 = Fitness (aerobics, exercise machine-training, work-out)
401 = Adrenaline sports (e.g. bungee-jumping, paragliding)
405 = Boat sports (e.g. sailing, rowing, yachting)
416 = Inline skating, skateboarding, roller skating
417 = Martial arts (e.g. Boxing, wrestling, Judo)
491 = e-sports(watching game, lineage, starcraft, warcraft)

Most frequently played game
-8 = DK/NA
-1 = IAP
10 = Boad games_big class
11 = Backgammon'
12 = Checkers (brit. draughts)
13 = Chess
14 = Go
15 = Other board games
20 = Card games_big class
21 = Western card games
22 = Korean card games
30 = Dominoes
40 = Mah-jongg
50 = Jigsaw puzzles
60 = Word or number games
70 = Video games, computer games
77 = Other games
80 = Gambling games
90 = Traditional Korean games

Whom R plays game with
-8 = DK/NA
-1 = IAP
1 = With someone else face-to-face
2 = With someone else using equipment such as computer
3 = Alone using equipment such as computer
4 = Alone without using any equipment

Importance of physical or mental as a reason for playing games
-8 = DK/NA
-1 = IAP
1 = Very important
2 = Somewhat important
3 = Not very important
4 = Not important

Most frequently watched sports on TV
301 = Athletics (e.g. running, long-/high-jumping), marathon
302 = Body training (e.g. body-building, artist.g ymnastics)
303 = Fitness (aerobics, exercise machine-training, work-out)
401 = Adrenaline sports (e.g. bungee-jumping, paragliding)
405 = Boat sports (e.g. sailing, rowing, yachting)
416 = Inline skating, skateboarding, roller skating
417 = Martial arts (e.g. Boxing, wrestling, Judo)
491 = E-sports(watching game, lineage, starcraft, warcraft)

Feeling proud when Korea does well at an international sports competition
-8 = DK/NA
-1 = IAP
1 = I am very proud
2 = I am somewhat proud
3 = I am not very proud
4 = I am not proud at all

Belief about the existence of God
-8 = DK/NA
-1 = IAP
1 = I don't believe in God
2 = I don't know whether there is a God and I don't believe there is any way to find out
3 = I don't believe in a personal God but I do believe in a High Power of some kind
4 = I find myself believing in God some time, but not at others
5 = While I have doubts, I feel that I do believe in God
6 = I know God really exists and I have no doubts about it

Belief in life after death
-8 = DK/NA
-1 = IAP
1 = Yes, definitely
2 = Yes, probably
3 = No, probably not
4 = No, definitely not

Mother's religion
-8 = DK/NA
-1 = IAP
1 = Protestant
2 = Catholic
3 = Buddhism
4 = Orthodox
5 = Muslim
6 = Jewish
7 = Won Buddhism
8 = Soka Gakkai International
9 = Confucianism
10 = Taoism
11 = Fork religion/Shaman faith
12 = Cheondogyo
13 = Daesun Jinrihoe
14 = JeungSanDo
15 = Tenrikyo
16 = Soowoongyo
77 = OTHER

Frequency of R's mother attended the religious services (when R was a child)
-8 = DK/NA
-1 = IAP
1 = Never
2 = Less than once a year
3 = About once or twice a year
4 = Several times a year
5 = About once a month
6 = 2-3 times a month
7 = Nearly every week
8 = Every week
9 = Several times a week
10 = No mother/mother not present
98 = Can't say/Can't remember

Frequency of R's father attended the religious services (when R was a child)
-8 = DK/NA
-1 = IAP
1 = Never
2 = Less than once a year
3 = About once or twice a year
4 = Several times a year
5 = About once a month
6 = 2-3 times a month
7 = Nearly every week
8 = Every week
9 = Several times a week
10 = No father/father not present
98 = Can't say/Can't remember

Frequency of R attended the religious services when R was around 11 or 12
-8 = DK/NA
-1 = IAP
1 = Never
2 = Less than once a year
3 = About once or twice a year
4 = Several times a year
5 = About once a month
6 = 2-3 times a month
7 = Nearly every week
8 = Every week
9 = Several times a week
98 = Can't say/Can't remember

Frequency of R's pray
-8 = DK/NA
-1 = IAP
1 = Never
2 = Less than once a year
3 = About once or twice a year
4 = Several times a year
5 = About once a month
6 = 2-3 times a month
7 = Nearly every week
8 = Every week
9 = Several times a week
10 = Once a day
11 = Several times a day
98 = Can't say/Can't remember

Frequency of R taking part in activities of a religious group other than attending services
-8 = DK/NA
-1 = IAP
1 = Never
2 = Less than once a year
3 = About once or twice a year
4 = Several times a year
5 = About once a month
6 = 2-3 times a month
7 = Nearly every week
8 = Every week
9 = Several times a week
10 = No religion
98 = Can't say

Frequency of visiting holy places
-8 = DK/NA
-1 = IAP
1 = Never
2 = Less than once a year
3 = About once or twice a year
4 = Several times a year
5 = About once a month or more

Self-evaluation on R's religiousness
-8 = DK/NA
-1 = IAP
1 = Extremely religious
2 = Very religious
3 = Somewhat religious
4 = Neither religious nor non-religious
5 = Somewhat non-religious
6 = Very non-religious
7 = Extremely non-religious

Self-evaluation on R's interest in spirituality
-8 = DK/NA
-1 = IAP
1 = I follow a religion and consider myself to be a spiritual person interested in the sacred or the supernatural
2 = I follow a religion, but don't consider myself to be a spiritual person interested in the sacred or the supernatural
3 = I don't follow a religion, but consider myself to a spiritual person interested in the sacred or the supernatural
4 = I don't follow any religion and don't consider myself to be a spiritual person

Opinion on the truth in religion
-8 = DK/NA
-1 = IAP
1 = There is very little truth in any religion
2 = There are basic truths in many religions
3 = There is truth only in one religion

Ideal number of children (2006,2008,2012)
-8 = DK/NA
-1 = IAP
0 = Undocumented code
1 = 0 person
2 = 1 person
3 = 2 persons
4 = 3 persons
5 = 4 persons
6 = 5 persons
7 = 6 persons
8 = 7 persons
9 = 8 persons
10 = 9 persons
11 = 10 persons
12 = 11 persons
13 = 12 persons
14 = 13 persons
15 = 14 persons
16 = 15 persons

Frequency of work-family conflicts: I have come home from work too tired to do the chores which need to be done.
-8 = DK/NA
-1 = IAP
1 = Several times a week
2 = Several times a month
3 = Once or twice
4 = Never

General satisfaction with the family life
-8 = DK/NA
-1 = IAP
1 = Completely satisfied
2 = Very satisfied
3 = Fairly satisfied
4 = Neither satisfied nor dissatisfied
5 = Fairly dissatisfied
6 = Very dissatisfied
7 = Completely dissatisfied

Whether R's mother worked for a pay more than a year before R turned 14
-8 = DK/NA
-1 = IAP
1 = Yes, she worked for pay
2 = No

R's working status when a child was under school age
-8 = DK/NA
-1 = IAP
1 = Worked full-time
2 = Worked part-time
3 = Stayed at home

Main decision-maker about bring up the children between R and the spouse
-8 = DK/NA
-1 = IAP
1 = Mostly me
2 = Mostly my spouse/partner
3 = Sometimes me/sometimes my spouse/partner
4 = We decide together/decided together
5 = Someone else

Actors that are primarily responsible for providing health care for the sick
-8 = DK/NA
-1 = IAP
1 = Government
2 = Private companies/for-profit organizations
3 = Non-profit organizations/charities/cooperatives
4 = Religious organizations
5 = Family, relatives or friends

The most influential organization on government actions
-8 = DK/NA
-1 = IAP
1 = The media
2 = Trade unions
3 = Business, banks and industry
4 = Religious organizations/authorities
5 = The military/army
6 = Organized crime
7 = People who vote for the party/the parties in government
8 = Citizens in general
9 = Civic and voluntary organizations
10 = International organizations

Opinion on what affects the policies in Korea
-8 = DK/NA
-1 = IAP
1 = Policies in Korea depend more on what is happening in the world economy, rather than who is in government
2 = Policies in Korea depend more on who is in government, rather than what is in the world economy

Opinion on government having the right to keep people under video surveillance in public areas
-8 = DK/NA
-1 = IAP
1 = Definitely should have right
2 = Probably should have right
3 = Probably should not have right
4 = Definitely should not have right

Opinion on public security and government information access
-8 = DK/NA
-1 = IAP
0 = All government information should be publicly available even if this means a risk to public security
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
10 = Public security should be given priority, even if this means limiting access to government information

R's political interest
-8 = DK/NA
-1 = IAP
1 = Very interested
2 = Fairly interested
3 = Somewhat interested
4 = Not very interested
5 = Not at all interested

Frequency of tax authorities making sure that people pay their taxes
-8 = DK/NA
-1 = IAP
1 = Almost always
2 = Sometimes
3 = Often
4 = Almost never

political actions: posting and sharing election materials such as writings, pictures, videos, and audios on the Internet, Social Network Service or KakaoTalk
-8 = DK/NA
-1 = IAP
1 = Have done it in the past year
2 = Have done it in the more distant past
3 = Have not done it but might do it
4 = Have not done it and would never do it

Preference for the gender of a child
-8 = DK/NA
-1 = IAP
1 = A boy
2 = A girl
3 = Doesn't matter

Ideal number of children (2014)
-8 = DK/NA
-1 = IAP
0 = 0
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
10 = 10
11 = 11

Desirability of three generations sharing a home
-8 = DK/NA
-1 = IAP
1 = Desirable
2 = Undesirable

Number of siblings - R
-8 = DK/NA
-1 = IAP
1 = One

Whether R's father is alive (2006,2016)
-8 = DK/NA
-1 = IAP
1 = Alive
2 = Not alive

Employment status of R's father
-8 = DK/NA
-1 = IAP
1 = Employed
2 = Not employed

Living arrangement of R's father
-8 = DK/NA
-1 = IAP
1 = Married son
2 = Married daughter
3 = Unmarried son or daughter
4 = Spouse only
5 = Alone
6 = A care facility
77 = OTHER

How far R's father lives from R
-8 = DK/NA
-1 = IAP
0 = Living together
1 = Next door, same building, or same street
2 = Within 15 minutes' walk
3 = Within 15 to 30 minutes by car or train
4 = Within 30 minutes to an hour by car or train
5 = Within an hour to 3 hours by car or train
6 = More than 3 hours by car or train
7 = Living abroad

Frequency of face-to-face contacts with R's father
-8 = DK/NA
-1 = IAP
0 = Living together
1 = Daily
2 = Several times a week
3 = About once a week
4 = About once a month
5 = Several times a year
6 = About once a year
7 = Less than once a year

How far R's mother lives from R
-8 = DK/NA
-1 = IAP
0 = Living together
1 = Next door, same building or same street
2 = Within 15 minutes' walk
3 = Within 15 to 30 minutes by car or train
4 = Within 30 minutes to an hour by car or train
5 = Within an hour to 3 hours by car or train
6 = More than 3 hours by car or train
7 = Living abroad

Frequency of R preparing dinner
-8 = DK/NA
-1 = IAP
1 = Daily
2 = Several times a week
3 = About once a week
4 = About once a month
5 = Several times a year
6 = About once a year
7 = Less than once a year

Member of the family who is responsible for taking care of old parents
-8 = DK/NA
-1 = IAP
1 = Eldest son or his family
2 = Any son or his family
3 = Any daughter or her family
4 = Any son or daughter, or his/her family
5 = All children or their family equally
6 = Children or their family are not responsible for taking care of old parents.
77 = OTHER

Opinions on gender roles: it is more important for a wife to help her husband's career than to pursue her own career (2006)
-8 = DK/NA
-1 = IAP
1 = Strongly agree
2 = Fairly agree
3 = Somewhat agree
4 = Neither agree nor disagree
5 = Somewhat disagree
6 = Fairly disagree
7 = Strongly disagree

How R got to know the current spouse at first
-8 = DK/NA
-1 = IAP
1 = By arrangement
2 = By introduction
3 = By myself

(if it was by arrangement or introduction) person who arranged the first meeting
-8 = DK/NA
-1 = IAP
1 = Siblings or cousins
2 = Parents or other relatives
3 = Friends or schoolmates
4 = Colleagues
5 = Matchmaker or match-maker company
6 = Neighbors or other elders (not kin)
77 = OTHER

Where R met the current spouse (if R got to know the spouse by his/herself)
-8 = DK/NA
-1 = IAP
1 = In neighborhood
2 = At school
3 = At workplace
4 = At a gathering
5 = At family or friend s wedding
6 = Religious organization
7 = At a cafe
8 = At a nightclub
77 = OTHER

Parents' influence on the marriage decision with the current spouse
-8 = DK/NA
-1 = IAP
1 = Very much
2 = Fairly much
3 = Not too much
4 = Not at all
5 = Parents not alive at that time

Agree or disagree: my spouse listens to my troubles
-8 = DK/NA
-1 = IAP
1 = Very true
2 = Quite true
3 = Somewhat true
4 = Neither true nor untrue
5 = Somewhat untrue
6 = Quite untrue
7 = Very untrue

Family decision maker: children discipline and education
-8 = DK/NA
-1 = IAP
1 = Always I
2 = Usually I
3 = Equally between me and spouse
4 = Usually my spouse
5 = Always my spouse
6 = Other family member(s)

Satisfaction in marriage
-8 = DK/NA
-1 = IAP
1 = Very satisfied
2 = Somewhat satisfied
3 = Neither satisfied nor dissatisfied
4 = Somewhat dissatisfied
5 = Very dissatisfied

Amount of the financial assistance from R's parents after marriage
-8 = DK/NA
-1 = IAP
1 = Very much
2 = Some
3 = Not at all

R's health condition
-8 = DK/NA
-1 = IAP
1 = Very good
2 = 2
3 = 3
4 = 4
5 = Very poor

Size of the region R lived in the longest before the age 15
-8 = DK/NA
-1 = IAP
1 = A big city
2 = A medium or small-sized city
3 = A town
4 = A rural village

Frequency of watching Japanese animations
-8 = DK/NA
-1 = IAP
1 = Often
2 = Sometimes
3 = Seldom
4 = Not at all

Extent of caring about the auspicious or ominous day for special occasions
-8 = DK/NA
-1 = IAP
1 = Very much
2 = Fairly much
3 = Not too much
4 = Not at all

Importance of honesty as a quality of a friend
-8 = DK/NA
-1 = IAP
1 = Very important
2 = Important
3 = Neither important nor unimportant
4 = Not important
5 = Not important at all

Opinions on gender roles: it is more important for a wife to help her husband's career than to pursue her own career (2008)
-8 = DK/NA
-1 = IAP
1 = Strongly agree
2 = Agree
3 = Somewhat agree
4 = Neither agree nor disagree
5 = Somewhat disagree
6 = Disagree
7 = Strongly disagree

Social characteristics of the non-kins with the most frequent contact
-8 = DK/NA
-1 = IAP
1 = You have contact more with people who are socially higher than those who are lower.
2 = The majority of people with whom you have contact are socially equivalent to you.
3 = You have contact more with people who are socially lower than those who are higher.

Number of neighbors on greeting terms
-8 = DK/NA
-1 = IAP
1 = 0
2 = 1-2
3 = 3-4
4 = 5-9
5 = 10 or more

Number of years that R has been living in the same area
-8 = DK/NA
-1 = IAP
1 = Since I was born
2 = Less than a year
3 = 1-2.99 years
4 = 3-4.99 years
5 = 5-9.99 years
6 = 10-19.99 years
7 = 20-29.99 years
8 = 30 years and more

Number of family members living together
-8 = DK/NA
-1 = IAP
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
10 = 10
11 = 11
12 = 12
13 = 13
14 = 14
15 = 15

Number of family members living away from R
-8 = DK/NA
-1 = IAP
0 = 0
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
10 = 10
11 = 11
12 = 12
13 = 13
14 = 14
15 = 15

-8 = DK/NA
-1 = IAP
1 = Seoul
2 = Gyeonggi
3 = Gangwon
4 = Chungcheong
5 = Gyeongsang
6 = Jeolla
7 = Jeju