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In April 2011, the LISS panel completed the EQ-5D questionnaire. The questionnaire serves to validate the Dutch EQ-5D (classification for describing health) and to understand the valuation of health in the Netherlands. The questionnaire also examines the best way of posing the questions. For this purpose, pairwise comparisons and best-worst scaling are used (the evaluation of three health states simultaneously). Respondents were first presented a number of example questions, so that they could practice with the setup and layout of the multiple choice questions. This was followed by 12 multiple choice questions. For each decision-making situation, respondents were asked to imagine they only had a few years left to live. For every question three options were given, indicating in what health condition the respondents could spend the last years of their life. Respondents then indicated which option they preferred. Depending on the group to which the respondent belonged, (some) questions consisted of pairwise comparisons, each question then comprised a part A and part B. In part A, a choice was offered between options A and B. These options offered an equal life expectancy but different health conditions: a better, equal of worse score on the 5 health aspects of “problems with walking”, “problems with washing or dressing”, “problems with daily activities”, “pain or discomfort” and “anxiety or depression”. In part B, exactly the same options were displayed as in part A, but here the choice was between option B, to live longer in poorer health, and C, to live shorter in perfect health. Also depending on the group to which the respondent belonged, (some) questions consisted of evaluations of the three health conditions simultaneously (best-worst scale distribution). The groups were as follows: Group 1: 12 pairwise comparisons (questions eo11a019-eo11a042), followed by evaluation. Group 2: 12 best-worst questions (questions eo11a043-eo11a066), followed by evaluation. Group 3: 6 pairwise comparisons (questions eo11a067-eo11a078), followed by evaluation, and 6 best-worst questions (questions eo11a084-eo11a095), followed by evaluation. The remaining life expectancies and health conditions differed per question and per version (note that option C always represented perfect health, but with a shorter life expectancy than options A and B). Respondents were randomly assigned to one of the eight versions. The health aspects were displayed on the screen in random order (this order was maintained throughout the rest of the questionnaire). Colors were used for the scores on health aspects. The colors depended on the group to which the respondent belonged: Group 1: light purple=good health, dark purple=poor health. Group 2: light purple=poor health, dark purple=good health. This was done to check in how far the colors contribute to the relatively large weight of the poor health conditions. The variables for the version, the question, the scores on the 5 health aspects, and the remaining life expectancies were captured.

The project investigates respondents’ experiences with (reduced) meat consumption and (reduced) car use. In addition, it is investigated to what extent sustainable health
behaviors have changed compared to 2019.

Trend study on changes in general opinions and attitudes of the Dutch population regarding a wide range of topics. Face to face interview: Opinion on government plans to postpone retiring age / working without financial necessity / sidejobs of pupils and students / working after age 65 / early retirement - VUT - schemes / expected retirement age / volunteer work / most important socio-political issues / economic expectations / economic crisis / government expenditure / trust in people / loneliness / personal worries : financial, politics, health, family, future, unemployment / concern with: Twin Tower attack, Pim Fortuyn murder, Srebrenica report, Enschede firework disaster, Volendam cafe fire, foot - and mouth disease crisis, BSE crisis / life satisfaction (compared to 3 years ago) / role of the family / same sex marriage / adoption rights homosexuals / second home: ownership, residence / pets: dog-, cat-ownership, attachment / satifaction with income / satisfaction with government policies affecting income / satisfaction with social security schemes ( AOW, ABW, WW, ANW, WAO etc. ) / differences in income and ownership / religion, religiousness / tolerance towards various religions and sects / school denomination / religious principles in politics / belief system / women and work / sex role differences / career possibilities women / immigrants / crime / punishment/ drug addicts / capital punishment / sexual crime / politics / say in local and regional policy / left - right selfrating / progressive - conservative / liberal / socialist / shift towards individualistic attitude / voting / political party preference / reading and TV viewing political matters / political interest / party membership / sense of political efficacy / choosing prime minister and mayors directly / importance of referendum / relative importance of various political issues: law and order, democracy, prices, freedom of speech, economic growth, strong defense, local democracy, town and country planning, economic stability, criminality, more friendly society, less materialistic society, unemployment, environment, social security, reception of immigrants / political activism / union membership / taxation / immigrants, foreigners, allochtonous groups, ethnic minorities, discrimination, racism, adaptation of immigrants, admission policy, freedom of speech imams / evaluation government policy regarding: care of elderly, health care, arts and culture, sports and leisure, general education, vocational training, law and order, social security, employment, environment, prices, quality of city-life, immigration, child-care / satisfaction with current government / local ( municipality level ) politics / computer ownership / Internet use. Drop off questionnaire: ( frequency of ) contacts with close family members / friendships / social contacts / group contacts / social activities / contacts preferred for help in general, lending money, mental support / helping others / characteristics of a real friend / happiness / trust in people / working women / gender roles / marriage / children / division of responsibilities within household / ( time spent on ) household activities / decision making in household affairs / stress / fatigue / satisfaction with work and family life / work / employment / acceptability of: tax evasion, misuse of social security, pre- or extra-marital sex, abortion. Data further contain a wide range of demographic variables, including: sex, age, marital status, employment situation, financial situation, household characteristics.