Children of Immigrants Longitudinal Survey in Four European Countries - Germany (CILS4EU-DE) - Full version. Data file for on-site use

Leisure behaviour, friendships, family, feelings and beliefs, identity, the current situation and vocational training of young people. Sibling situation.

Wave 4

1.Youth main questionnaire:

Topics: Leisure behaviour: frequency of different leisure activities (Visiting relatives, cinema, going out, reading, sports club or music club, concert, museum, newspaper reading); hourly expenditure on a typical school day for television, chatting, household work, video or computer games alone and with others.

Friendships: ethnic background of friends; interethnic background of friends; contact with people of selected ethnic origin; migration background; importance of equal education, religion, and ethnic background of the respondent´s own partner for the respondent personally and for his or her parents; boyfriend or girlfriend; details to partner: current activity, type of school attended or highest educational level, ethnic background, denomination, importance of religion for the partner; beginning of the relationship (duration of the relationship); context of getting to know each other (e.g. via friends); partner lives in the same neighbourhood; parents have knowledge of the relationship or have the partner already met; parents already knew each other before start of relationship; family relationships: interest of the family in conversations about the boyfriend or girlfriend; parental interference: request for information about activities and whereabouts at undertakings with the boyfriend or girlfriend, demand for immediate acquaintance of the friend; expected marriage; current boyfriend/girlfriend is first steady relationship; number of previous friends; family rejects relationship expected openness of the family in case of negative attitude towards the friend or to the girlfriend; the family leaves relationship decisions up to the respondent; arranged relationships through the family; demand of the family after termination of the relationship in case of lack of sympathy; preferred marriage age; desired number of children.

Family: migration background of the biological parents; frequency of visits in the country of origin of parents in the last 12 months; employment status of parents in the last 12 months; frequency of pocket money and amount of pocket money.

Feelings and beliefs: life satisfaction (scalometer); discrimination: sympathy scale for selected groups of origin; understanding of gender roles.

Self-assessment of German language skills (speaking, writing); national identity; sense of belonging to another group, and strength of identity; importance of religion to the respondent; self-assessment of the state of health compared to peers; delinquent behavior in the last three months: deliberate destruction of foreign property, stealing, carrying knives or weapon, drunkenness); frequency of hot meal and breakfast; frequency of alcohol consumption, sports, cigarette consumption and drug consumption; body height in centimetres and weight in kilograms; preferred and realistic educational aspiration; expectations for the future in terms of stay in Germany, marriage, children and state of health.

Current situation: school leaving certificate during the last school year; grades in mathematics, German and English in the diploma; overall grade on leaving certificate; current situation; currently visited type of school; branch of cooperative comprehensive school; currently attended class level; frequency of deviant behaviour in school (disputes with teachers, experienced punishment, unauthorized absence from lessons, late arrival); self-efficacy; attitude towards school: importance of good grades.

Vocational training: title of the training occupation (ISCO 2008, ISEI, SIOPS); duration of training; achievement of an additional educational attainment through the training; nature of this educational attainment; amount of training allowance per month (categorised); job title of the current occupation or job; amount of monthly net income (categorized); type of employment contract; start of employment in this occupation (month and year); job is the first job since leaving school; job title of the first job (ISCO 2008, ISEI, SIOPS); active search for a place of training or employment; professional title of the desired profession (ISCO 2008, ISEI, SIOPS).

Additionally coded: international respondent ID; national respondent ID; country of data collection; mode of collection; interview date; flag variable (interview date derived from the date of receipt of the contact information); data release version.

Derived Indexes: occupational code according to ISCO (International Standard Classification of Occupations) 1988; SIOPS (Ganzeboom); ISEI (Ganzeboom).

2. Youth siblings questionnaire: total number of siblings; for up to 5 siblings were asked: brother or sister; age; present situation or activity; type of school attended; educational attainment; Job title (ISCO 2008, ISEI, SIOPS).

Additionally coded: international respondent ID; national respondent ID; country of data collection; mode of collection of the main interview; interview date; flag variable (Interview date derived from the receipt date of the contact information); Data release version.

Derived indexes: occupational code according to ISCO (International Standard Classification of Occupations) 1988; SIOPS (Ganzeboom); ISEI (Ganzeboom).

3. Tracking data set: individual respondent ID; national respondent ID; ID of the class and school; survey unit at class level and school level Wave 2; country; stratum of school (migrant share); school type; federal state; participation status from waves 1 until 4.

Wave 5

Topics: Current situation:
School: school leaving certificate or diploma awarded in the last year; diploma obtained and title of diploma; duration of training; final grade; achievement of a school leaving certificate at the same time as training; type of school leaving certificate; grades in mathematics, German and English in the diploma; overall grade in the diploma; current activity; current type of school attended; branch of cooperative comprehensive school; current class level attended; frequency of deviant behaviour at school (arguments with teachers, experienced punishment, unauthorised absence from school, late arrival); self-efficacy; attitude towards school; importance of good school grades.

Vocational training: name of the training occupation; total duration of training; achievement of an additional educational qualification through training; type of this educational qualification; level of net monthly income (categorised).

Studies: month and year of study start; type of university; major and minor subjects; expected degree; study programme with admission restrictions or selection procedure; receipt of BAföG, educational loan or scholarship; total income from BAföG, educational loan and/or scholarship.

Job title of current occupation or job; amount of net monthly income (categorised); type of employment contract; start of employment (month and year); job is first job since leaving school; job title of first job; active search for training or job; job title of desired occupation.

Self-assessment of German language skills (speaking, writing); other languages at home than German; self-assessment of knowledge of this language (speaking, writing); frequency of television, conversations with family and friends and newspaper reading in this language.

German citizenship; interest in German citizenship or naturalisation; intended naturalisation in the next 5 years; opinion on German citizenship or naturalisation (costly and expensive, important as naturalisation enables participation in elections, protection against possible deportation, surrender old citizenship in case of naturalisation); attitude towards German citizenship (negative attitude of the family, feeling less belonging to the country of origin of the family, facilitation of everyday life, e.g. with authorities or on journeys, advantages in education, studies or job search, correctly belonging to Germany).

Leisure behavior: activity in associations or groups; association or group in which most of the time is spent; name of association or group; position held in this association; proportion of persons of selected ethnic origin; type of political participation in the last year (petition, demonstration, party support); frequency of information on political and social issues; frequency of discussions on political and social issues.

Frequency of hot meals and breakfast; frequency of alcohol consumption, sports, smoking, drug use; part-time job; weekly hours and monthly earnings in part-time job.

Family: parents´ migration background; frequency of visits to parents´ country of origin in the last 12 months; interest in this country´s policies; parents´ employment status; frequency of pocket money and amount of pocket money.

Friendships: ethnic background of the friends; contact in school, university or profession with people of selected ethnic origin.

Feelings and attitudes: national identity; sense of belonging to another group and strength of identity; importance of traditionalism with regard to this group; Germans should do everything to preserve their customs and traditions; foreigners should adapt to German society; Germans should be open to foreigners´ customs and traditions; foreigners should do everything to preserve their customs and traditions.

Religious affiliation; importance of religion for the respondent; frequency of visits to religious meeting places; frequency of prayers; sympathy scale for selected groups of origin; opinion on living together as an unmarried couple, on divorce, abortion and homosexuality; life satisfaction (scale); health problems: frequency of headaches, stomach pains and problems falling asleep in the last 6 months; future expectations regarding job, stay in Germany, university degree and wealth.

Political opinion: complexity of politics; simple formation of opinions on political topics; politicians only interested in votes; politicians concerned about what people think; particularly good politicians; satisfaction with the democratic system in Germany and the work of the federal government; institutional trust (political parties, courts, police, politicians, newspapers, radio and television); party preference (Sunday question); eligibility to vote and participation in the European elections in May 2014; self-assessment left-right.

Demography: sex; age (day, month and year of birth).

Additionally coded: International respondent ID; country of data collection; mode of collection; interview date (month, year); data release version.

Wave 6

Topics: Career history after school, family, friends, partnership and leisure time.

Youth main questionnaire:
Housing situation: relationship with other household members.

Self-assessment of German language skills (speaking, writing); other language(s) at home than German; self-assessment of knowledge of this language (speaking, writing); frequency of television, conversations with family and friends and newspaper reading in this language; nationality.

Leisure behaviour: frequency of selected leisure activities (visiting relatives, going out, reading, sports club or music club, concert, museum, newspaper reading); frequency of information on political and social topics; frequency of discussions on political and social topics; number of books in the household.

Family: migration background of parents and grandparents; frequency of visits to parents´ country of origin in the last 12 months; education of parents (only refresher sample); activity status of parents; current or last occupation of parents.

Feelings and beliefs: future expectations at the age of 30 regarding country of residence, marriage, children, state of health, national identity; sense of belonging to another group and strength of identity; opinion on limiting refugee immigration by setting a ceiling; opinion on refugee acceptance in the country (war or civil war refugees, politically persecuted, religiously persecuted, people fleeing starvation or natural disasters, ethnically persecuted and refugees who have left their country due to insufficient employment opportunities); gender roles (raising children, cooking, cleaning up, earning money).

Religious affiliation; importance of religion for the respondent; frequency of visits to religious meeting places; frequency of prayers; assessment of opportunities for education or employment with the same grade (men or women, foreigners or natives, children of workers or academics); experience of discrimination based on gender, ethnicity and social origin.

Friendships: boyfriend/girlfriend; activity and origin of boyfriend/girlfriend; ethnic background of boyfriend/girlfriend; personal trust; self-assessment of health compared to peers; proportion of people in main activity with German, Italian, Polish, Russian, Turkish or other origin; general life satisfaction.

Current situation: school leaving certificate, training qualification or university degree since the last interview and type of these qualifications; overall mark on leaving certificate; designation of occupation requiring training; attainment of an additional educational qualification through training; type of this educational qualification; current job; school: type of school currently attended; vocational training: Title of occupation providing training; amount of net monthly income (categorised); studies: major and minor subjects; expected degree; occupation: title of current occupation or job; amount of net monthly income (categorised); type of income sources and of amounts available.

Permanent partnership; living with a partner since January 2011; married; children; number of children.

Demography: sex; age (day, month and year of birth); refreshment sample: country of birth; age of migration; generation.

Additionally coded: weighting factors; flag variables.

Youth achievement questionnaire:
Linguistic competence tasks and a word and figure puzzle (cognitive ability test)

Youth life history calendar -structural:
Technical information: type of wave detection; personal wave index; wave type (2 levels); wave start and end (month, year); wave duration; correction in test module; technical problem in longitudinal section.
Information on all educational pathways since January 2011: detailed information on general education first and second educational pathways, information on vocational training (apprenticeship in a company and at school), information on school-based vocational training, information on vocational schools for initial and continuing vocational training, information on retraining, information on studies, vocational preparation, other vocational training.
For example, the following were recorded: type(s) of school attended, school leaving certificate obtained, final grade; occupation requiring training, subjects studied, type of higher education institution, restriction on admission, degree, degree attained, other courses of study.

Information on all forms of employment (e.g. full-time employment: occupation, type of employment contract, conversion of fixed-term contract into open-ended contract, weekly working hours, internship, part-time job, type of activity, etc.) Information on maternity protection, parental leave, voluntary service, military service, work & travel, stays abroad, unemployment, job search; work as a househusband or housewife, incapacity to work.
Information on the kind of other activities.

Verification of the data by opening the calendar; missing information.

Youth life history calendar - partner:
Information on partner: sex; age (month of birth, year of birth); start and end of partnership; duration of partnership; further partnerships; start and end of further partnerships; partner´s school attendance at start of partnership and type of school attended; partner´s education at start of partnership; migration background; time of living together with partner; duration of living together; married to partner; time of start and end of marriage; duration of marriage.

Youth life history calendar - children:
Information on children: sex; age (month and year of birth); biological child.

Information on the sample (Youth main questionnaire, Youth achievement questionnaire, youth life history calendar, youth life history calendar - partner, youth life history calendar - children): International respondent ID; country of data collection; data collection method ( face-to-face interview); version, sample (panel, refresher); interview date (day, month, year); data release version; unique partner index; unique child index; participation status waves 1 to 6 (reasons for non-participation).

Wave 7

Youth main questionnaire:

Self-assessment of language skills in the national language (speaking and writing); other languages spoken at home; self-assessment of language skills in this second language (speaking and writing); frequency of use of this second language (conversations with family and friends, television and newspaper reading); family situation or situation outside the family or living alone; association membership; personality traits (extroversion, goodwill, conscientiousness, neuroticism, openness to experience).

Information on partner: permanent partner; date of beginning of relationship (month, year); age; current job; highest educational attainment; desired educational attainment; partner´s origin; marriage; date of marriage (month, year); children; number of children; month and year of birth of children.
Attitudes towards other groups: opinion on immigrants: national population/immigrants should adhere to their customs and traditions, immigrants should adapt to the society in the country, national population should be open to the customs and traditions of immigrants; cohabitation without marriage certificate, divorce, abortion and homosexuality are ok; feelings towards different population groups (Germans, Italians, Poles, Russians, Turks, Syrians, Afghans, Albanians, Bulgarians, North Africans, other Africans).

Parents: parents´ migration background; frequency of visits to parents´ country of origin in the last 12 months; current employment status of parents.

Feelings and beliefs: have many good qualities, much of which I can be proud, like me as I am, confidence in the future; national identity; sense of belonging to another group and strength of identity; personal meaning to hold on to the customs and habits of that group; frequency of different feelings (worried, quickly angry, anxious, downhearted, worthless, acting without thinking); religion: religious affiliation; importance of religion for the respondent; frequency of visits to religious meeting places; frequency of prayers; importance of religion for the respondent; frequency of visits to religious meeting places; frequency of prayers.

Friends and acquaintances: frequency of contact with people of different origins (Germans, Italians, Poles, Russians, Turks, Syrians, Afghans, Albanians, Bulgarians, North Africans, other Africans, other national origins); proportion of friends of German, Italian, Polish, Russian, Turkish or other origin.

Activities and health: general life satisfaction; frequency of headaches, stomach pains and difficulties falling asleep in the last six months; delinquent behaviour in the last three months (e.g., deliberate destruction of property, stealing, carrying a knife or weapon, drunkenness); frequency of hot meals and breakfast; frequency of alcohol consumption, sport, cigarette consumption and drug consumption; height in centimetres and weight in kilograms; future expectations at the age of 30 regarding job, whereabouts, university degree and financial situation.

Current situation: number of activities generated from wave 6; duration of this activity; time of end of activity(s) (month, year); school leaving certificate or diploma since last interview and type of these qualifications; acquisition of a higher education entrance qualification or attainment of an additional educational qualification through education; total duration of education; overall grade in leaving certificate; overall grade in school leaving certificate and in mathematics, German and English; university leaving certificate since last interview and type of this university leaving certificate; overall grade university leaving certificate.

Detailed information on current activities: School: type of school currently attended; start of school attendance (month, year); class level, vocational training: Date of commencement of training (month, year); total duration of training; attainment of an additional educational qualification as a result of training; type of educational qualification; studies: date of commencement of studies (month, year); type of higher education institution; major and minor subjects; expected level of studies; studies with restricted admission; professional activity: Job title of the current occupation or job (ISCO-08, ISEI, SIOPS - generated); type of employment contract; weekly working time; start of work in this job (month, year); current job is first job after leaving school; first job after leaving school (ISCO-08, ISEI, SIOPS - generated); active search for an apprenticeship or training position a job in the last three months; occupation (ISCO-08, ISEI, SIOPS - generated); type of income sources and amount of each available amount.

Demography: sex; age (day, month and year of birth).

Youth friends questionnaire:

Information on the three best friends: sex; age; origin; current activity; highest educational attainment; occupation (ISCO, ISEI, SIOPS).

Additionally coded: international respondent ID; national respondent ID (Germany); study area; mode of collection; interview date (day, month, year); version Youth main Interview, Youth friends Interview)

Tracking data set: individual respondent ID; national respondent ID; class and school ID; survey unit at class level and school level wave 2; sample (panel, refresher sample); country; stratum of school (migrant share); school type; participation status from waves 1 to 7.

COVID-19 Supplementray Survey -CILS4COVID:

Current main job; job in February 2020; loss of this job due to the Corona pandemic; change in everyday working life due to the Corona pandemic (e.g. Work from home, less/ more money, less/ more hours per week, time off without/ with continued pay, additional side job or mini-job taken, side job or mini-job lost, none of the above, currently no job or side job and not in education); frequency of information about the Corona pandemic from the following sources in German (newspapers (also online), public and private TV and radio stations (also online), public agencies, e.g. government or Ministry of Health, information from scientists or research institutions, social media); trust in the aforementioned sources of information; being informed about the Corona pandemic in a language other than German; most frequently used language for this information; frequency of being informed about the Corona pandemic by selected sources in this language; trust in the sources of information in this language; trust in different parties with regard to the management of the Corona pandemic (CDU/CSU, SPD, AfD, FDP, Die Linke, Bündnis 90/Die Grünen); agreement with statements on the Corona pandemic (the German Federal Government reacted to the Corona pandemic in good time, the measures taken by the German Federal Government to cope with the Corona pandemic unnecessarily restrict personal freedom, the economic damage caused by the measures to cope with the Corona pandemic is disproportionate to their benefit); assessment of the federal government´s actions to address the Corona pandemic; primary responsibility for containing the Corona pandemic (state or citizen); more or less concern since the beginning of the Corona pandemic with regard to the following areas: financial situation, own health, health of friends and relatives, economic situation in Germany; proven infection with the Corona virus (self, a person from the family, a person from the circle of friends, a person from the circle of acquaintances, no, I don´t want to say); frequency of headaches, stomach aches and problems falling asleep in the last two months; frequency of personal precautions against COVID-19 (sneeze or cough into the crook of my arm, wear a face mask and/or gloves in public, wash hands thoroughly, do not shake hands with other people when greeting them); frequency of different emotional states since the start of the Corona pandemic (worry a lot, get angry easily, feel scared, sad, worthless, act without thinking, feel lonely); changes in other people´s behaviour in public since the start of the Corona pandemic (avoid me more often on the street or in shops, sit away from me more often in public, have become more helpful to me overall); change in own behaviour; feeling unfairly treated or discriminated against more often because of ethnicity since the start of the Corona pandemic; changes since the beginning of the Corona pandemic in terms of frequency of quarrels or arguments, insults or verbal violence, fisticuffs or physical violence, disturbance by neighbours, as well as help from neighbours; trust in various parties with regard to dealing with climate change (CDU/CSU, SPD, AfD, FDP, Die Linke, Bündnis 90/Die Grünen); agreement with various statements: Federal government responded to climate change in a timely manner, measures taken by the federal government to address climate change unnecessarily restrict personal freedom, the economic damage caused by measures to address climate change is disproportionate to their benefits, it is right that issues such as climate change or migration are no longer at the forefront during the Corona pandemic); assessment of measures taken by the federal government to address climate change; primary responsibility for mitigating climate change (state or citizen); agreement with statements on the Corona pandemic (freedom of the individual should take a back seat to the well-being of the population during the Corona pandemic, Germany should not take in refugees during the Corona pandemic, the true origin of the Corona pandemic is being concealed from us, during the Corona pandemic we need a strong leader to ensure our safety); agreement with the following statements (it is important to follow the measures of the federal government now without questioning them, people with German citizenship should be given preferential medical care during the Corona pandemic, it is not good to have virologists running the country instead of democratically elected politicians, people who do not follow the protective measures of the federal government should be reported to the police immediately); satisfaction with different areas of life (general life satisfaction, health, German health system).

Demography: sex; age (date of birth).

Additionally coded: national respondent ID; country of survey (Germany); survey mode of the supplementary survey; interview date; indication of date; version of the supplementary survey; allocation to experimental groups.

Wave 8

1. Youth main questionnaire:

Self-assessment of language competence in the national language (speaking and writing); German dialect; most frequently spoken dialects; other language spoken at home; naming of this other language; self-assessment of language competence in this second language (speaking and writing); frequency of use of this second language (conversations with family and friends, watching television and reading newspapers); partner; origin of partner; married, date of marriage (month, year); intention to marry; children; number of children; month and year of birth of children; further wish to have children in the next two years; family situation: Birth of parents abroad (migration background); visit to mother/father´s country of origin.

Feelings and beliefs: national identity; sense of belonging to another group and strength of identity; gender roles; religion: religious affiliation; importance of religion for the respondent; frequency of attending religious meeting places; frequency of prayer; activity in a religious community.

Housing situation: age at moving out of parental home; main residence (state, country, regional classification; housing status; amount of monthly rent or monthly repayment costs for mortgage loans and other loans to finance the condominium/house; number of housing and house repairs; number of households living in the condominium/house; number of households living in the condominium/house; number of households living in the condominium/house; number of households living in the condominium/house. of the house; number of living rooms and bedrooms; composition of the neighbourhood (families with children, elderly, foreigners, unemployed); assessment of the neighbourhood with regard to housing, green spaces, public transport, shopping facilities, safety during the day and at night, distance to the workplace or place of education or study; means of transport used; intention to move within the next two years; main reason for the intention to move; maximum accepted distance in minutes to the workplace or place of education or study; preferred size of the town.

Everyday life: frequency of different leisure activities; time spent on a weekday watching TV, using streaming services, social media, online dating platforms, household activities, video games or computer games alone and with others; proportion of friends with German, Italian, Polish, Russian, Turkish or other origin; self-assessment of health status compared to peers; general life satisfaction and satisfaction with current home as well as living environment; future prospects at age 30 in terms of staying in the country, marriage, children, health and home ownership.

Current situation: school-leaving qualification or training qualification since the last interview and type of training qualification; designation of vocational qualification according to ISCO 2008 (ISEI, SIOPS - generated); acquisition of a higher education entrance qualification through the vocational qualification; total duration of training; overall grade or credit points in the leaving certificate; acquisition of an additional educational qualification with the vocational qualification; type of additional educational qualification acquired; overall grade in the leaving certificate and in the subjects mathematics, German and, English; higher education degree since the last interview and type of this higher education degree; overall grade of higher education degree; current main job.

School: type of school currently attended; school branch; school attendance since month, year; grade level.

Apprenticeship/vocational training: job title; important aspects for carrying out the job (mediating in disagreements between people, maintaining contact with people from the region, using clear and understandable language, convincing others to change their opinion or behaviour, assisting customers or clients in personal conversations, teaching); net income; start of training (month, year); duration of training; acquisition of an additional educational qualification with the training; type of additional educational qualification acquired.

Studies: Start of studies (month, year); dual studies; occupation; occupational title in the context of dual studies (ISCO-08, ISEI, SIOPS - generated); type of higher education institution; name of higher education institution; place of study; number of subjects studied (major and minor); subjects studied; type of degree; access restriction or selection procedure; receipt of BAföG, education loan or scholarship; amount of benefits received.

Work: current occupation (ISCO-08, ISEI, SIOPS - generated); important aspects for carrying out the occupation (mediating in disagreements between people, maintaining contact with people from the region, speaking clearly and understandably, persuading others to change their opinion or behaviour, assisting customers or clients in personal conversations, teaching); participation in retraining, further education or training in addition to work; type of retraining, etc.; name of retraining, etc. (ISCO-08, ISEI, SIOPS - generated); net income; type of employment contract; weekly working hours; month and year of starting work in this occupation; first job after leaving school; job title of first job (ISCO-08, ISEI, SIOPS - generated); name of retraining or in-service training ISCO-08, ISEI, SIOPS - generated); start of retraining or in-service training (month, year); total amount of retraining or CVT (number of hours); provider; receipt of a certificate of attendance, recognised licence or other certification with this retraining, CVT or CVD; active search for a training or work position in the last three months; Job title (ISCO-08, ISEI, SIOPS - generated).

2. Sibling questionnaire: total number of siblings; biological brother or sister, half-brother/half-sister, adoptive brother/half-sister, step-brother/step-sister; age of siblings; current situation or occupation; type of school attended; educational attainment; job title (ISCO 2008, ISEI, SIOPS).

Additionally coded were: international respondent ID; National respondent ID; Country of data collection; method of sibling interview (telephone, post, online); interview date; Data release version; Flag: Technical error sibling 3 (telephone interview) .

3. Youth residence history calendar: age at move-in; housing status (current or last dwelling - generated); federal state; country of residence; regional classification (RegioStaR); household composition; number and type of household members; reasons for moving out.

Additionally coded: International respondent ID, national respondent ID; country of data collection; Youth residence history calendar collection method (telephone, post, online); interview date; data release version; number of entries in the youth residence history calendar.

Wave 9

A: Youth main questionnaire:

1. Cultural and social integration:
Language: Self-assessment of proficiency in survey country language (speaking and writing); (second) language spoken at home; naming of this second language; self-assessment of proficiency in second language spoken at home (speaking and writing); frequency of use of this second language (conversations with family and friends, watching television and reading newspapers); migration history: Birth of parents abroad; frequency of visiting mother’s/ father´s country of birth during the last 12 months; migration background of respondent.

Romantic Relationship, marriage and children: currently in a relationship; date of marriage (month, year); background of partner; partner met through family or relatives, through friends or acquaintances, through dating websites, through social networks, etc.; children; number of children; month and year of birth of children; ever met partner online and had a casual relationship; ever met partner online and had a committed relationship; ever met partner offline and had a casual relationship, ever met partner offline and had a committed relationship, characteristics of partners of these relationships (German without migration background, same religious affiliation, higher educated, lower educated, same migration background) and amount of partners.

Discrimination: frequency of discrimination during dating because of religious affiliation, language, language ability, dialect or accent, education, and migration background; attitudes towards out-groups: Germans, Italians, Poles, Russians, Turks, Syrians, Afghans, Albanians, Bulgarians, North Africans, other Africans, and Ukrainians (rating on a scale that runs from 0 to 100).

Friendship (Strong Ties): ethnic background of friends (German, Italian, Polish, Russian, Turkish, another background).

Health: frequency of health problems (headaches, stomach aches, and difficulties falling asleep) in the last 6 months; health behavior: frequency of having a hot meal, drinking alcohol, doing sports or going to the gym, smoking cigarettes, eating breakfast, and using drugs; vaccinated against COVID-19; month and year of first vaccination; reasons for vaccination (protecting my health, protecting health of others, contribution to lifting of restrictions, easier access to restaurants, cafes, cinemas, other, work, studies, vocational training, pressure from society, family, friends or acquaintances, other reasons (open)); reasons for no vaccination (doubts about effectiveness, worries about side effects, don`t see need, reject state coercion, wait for another vaccine, wait for long-term studies, pre-existing conditions, pregnancy/ breastfeeding, fear of infertility, other reasons (open)).

Deviance and delinquency: delinquent behavior in the past 3 months (deliberately damaged things from someone else, stolen something from a shop or from someone else, carried a knife or weapon, been very drunk).

Political Participation: Party preference in the next federal election (Sunday question); voted in the last federal election in September 2021; voting behavior in the last federal election.

Identity: Attitudes towards integration/ acculturation strategies (The German people should do everything to keep customs and traditions, immigrants should adapt to German society, the German people should be open to the customs and traditions of immigrants, immigrants should do all to keep customs and traditions, salience of German identity; ethnic identity (No other group, one other group, two other groups); other group to which the respondent still feels he/she belongs; strength of the sense of belonging.

Attitudes and norms: Distrust (Coronavirus intentially created, Coronavirus is harmless, a small secret group is responsible for world politics, scientist manipulate evidence to deceive public); evaluation of corona pandemic measures by German politicians in the last two years; tolerance towards cohabitation, towards divorce, towards abortion, and towards homosexuality.

Religion: religious affiliation; specification religious affiliation Christianity: other religion/ Islam: other religion; religious affiliation other religion; religious salience: importance of religion; religious behavior (frequency of visiting religious meeting places, frequency of praying); religious belief: In my life, I benefit from the protection of a higher power.

Personality and Psychological Well-Being: Life satisfaction in general; satisfaction with relationship situation, with the financial situation, and with health; future expectations related to a job, a university degree, marriage, children, and wealth.

2. Current situation:
Education: highest educational degree; obtained another degree; other educational degree (e.g., completed vocational training/ apprenticeship, technical school degree, etc.); graduated from school or vocational training since the last interview; type of qualification from vocational training received; exact title of vocational qualification (ISCO 2008); vocational qualification (ISEI (generated), SIOPS (generated); receive university entrance qualification together with this vocational qualification; duration of apprenticeship in total; overall grade in vocational qualification certificate (grade, credit points, grade and credit points) (generated); overall grade in vocational qualification certificate: grade/ credit points; received an additional educational degree with the vocational qualification; kind of this educational degree; grades in school leaving certificate (grade, credit points, grade and credit points) (generated); grades/ credit points in school leaving certificate in the following subjects: German, Math, English; overall grade in vocational qualification certificate (grade/ credit points); information on additional educational degree; graduated from university since the last interview; university degree; grades in university graduation certificate (overall grade/ credit points).

Current activity (e.g. school, studying, etc.); school: school type currently attended; track attended in combined intermediate and upper secondary school, start of attending this school (month and year); currently attended grade.

Apprenticeship/work-related training: profession of current apprenticeship (ISCO 2008); profession of current apprenticeship (ISEI (generated), SIOPS (generated); monthly net income after tax and compulsory deductions; start of this apprenticeship (month and year); total duration of this apprenticeship; additional educational degree with the apprenticeship; kind of this additional educational degree.

Studying: start of studies (month and year); dual course of study with a vocational training; profession of vocational training as part of dual studies (ISCO 2008); profession of vocational training as part of dual studies (ISEI (generated), SIOPS (generated); kind of institution of higher education; exact name of this institution of higher education; place of study; subjects (generated); major subject 1 (2, 3): subject group, area of studies, subject; minor subject 1 (2, 3): subject group, area of studies, subject; degree the respondent will receive with the current studies; current studies are a degree course with restricted admission or a selection procedure; receipt of BAföG, an education loan or a scholarship; sum of money received from BAföG, an education loan or a scholarship in total each month.

Working: exact tile of current job (ISCO 2008); current job (ISEI (generated), SIOPS (generated); currently doing retraining/ further education and training in addition to job; exact title of this retraining, further education or training (ISCO 2008); kind of retraining, further education or training (ISEI (generated), SIOPS (generated); monthly net income after tax and compulsory deductions; type of contract; weekly working hours; start in this job (month and year); first job since the respondent has left school; exact title of first job (ISCO 2008); first job (ISEI (generated), SIOPS (generated).

Retraining, further education or training: exact title of retraining, further education or training (ISCO 2008); type of retraining, further education or training (ISEI (generated), SIOPS (generated); start of retraining, further education or training (month and year); total number of hours of this retraining, further education or training; provider of this retraining, further education or training; respondent will receive a certificate of attendance, a recognized license, or some other certification with this retraining, further education training; actively been searching for an apprenticeship or job in the last three months; exact title of this job (ISCO 2008); active search for which job or profession (ISEI (generated), SIOPS (generated).

Demography: sex; age (day, month and year of birth).

Additionally coded were: unique youth ID; national youth ID; country of survey; mode of youth main interview; date of survey; data release version of youth main interview.

B. Youth vignette questionnaire:
The survey experiment was implemented in the online (CAWI) and paper questionnaire (PAPI), but not in the telephone interviews. In the PAPI and CAWI modes of the CILS4EU-DE survey, all respondents received four different vignettes containing a description of a hypothetical partner and were asked to express their willingness to enter a partnership with the described person. The hypothetical partner (the vignette person), described in the vignettes varied on four different characteristics (vignette dimensions): Origin, religious denomination, religiosity, educational degree. Furthermore, the type of partnership that respondents were asked to evaluate varied between the vignettes. After the description of the vignette person, respondents were asked to report their willingness to either marry the described person, to enter a committed partnership with them or to enter a casual partnership with them.

Unique youth ID; national youth ID; country of survey; mode of youth main interview; date of survey; data release version of youth main interview; vignette group (native, migration background); experimental group; vignette number, position of vignette question; origin, religious denomination, religiosity, and educational attainment of vignette person; type of partnership; evaluation of vignette: web questionnaire, evaluation of vignette: postal questionnaire, evaluation of vignette: postal and web questionnaire (linear stretching).