LISS panel. Longitudinal Internet studies in the Social Sciences

Transcription

1

2 LISS panel Longitudinal Internet studies in the Social Sciences

3 CentERdata: MESS Budget for Investment in Large-Scale Research Facilities (BIG Facilities) of the Dutch science foundation (NWO) New research facility for social sciences: LISS panel

4 LISS panel (MESS project) Online panel of 5,000 households 8,000 individuals (>= 16 years) Questionnaires each month, 30 min. Incentive 15 euro an hour (average) For scientific use, at no cost

5 Why another online panel?

6 Disadvantages online surveys for scientists Noncoverage: Persons without internet are usually excluded No probability sample: Visitors of specific websites Selfselection (interested, strong opinions, specific goal) Response rates?

7 LISS panel Online interviews as method, but: Probability sample drawn from address sampling frame of Statistics Netherlands Give equipment to household without internet access Contacted by letter, telephone or visit

8 Recruitment Letter and brochure Short interview Panel question Households without internet SimPC and adsl Confirmation Internet interviews Households with internet

9 Households without internet SimPC

10 Very small and silent Only the most frequently used functions Automatic maintenance, safety Simple operation and readable screens Installation and support

11

12 Response! Letter and brochure Short interview Panel question Households without internet SimPC and adsl Confirmation Internet interviews Households with internet

13 Pilot experimental groups 1. CATI: special letter - no incentive - Panel in letter and brochure 2. CATI: special letter - promised incentive E Panel introduced after interview 3. CATI: Standard letter - prepaid incentive E Panel in letter and brochure 4. CATI: Standard letter - prepaid incentive E. 20 Panel introduced after interview 5. CAPI: special letter - prepaid incentive E. 50 Panel introduced after interview 6. CAPI: special letter - no incentive - Panel in letter and brochure 7. CAPI: Standard letter - promised incentive E Panel in letter and brochure CAPI: Standard letter - promised incentive E Panel introduced after interview

14 Household response in recruitment stages Recruitment stage % of total gross sample CATI/CAPI contact 91 CATI/CAPI first interview 75 Willing to participate in panel 63 Registered as panel member 48 Total gross sample* 9,844 *excluding not usable addresses

15 How well have we done? Compared to population Compared to traditional surveys Compared to other online panels 15 skip comparisons

16 LISS panel compared to population 2008 LISS Panel % Population % Bias Age >= Living alone Non-western origin Has Internet access Did not vote at election Voted SP at election Voted CDA at election skip to summary

17 How well have we done? Online panel with complete coverage, and no self-selection: Superior to access panels in age, internet, ethnicity, voting behaviour Similar to leading f2f surveys in many variables, except in oldest age and internet access

18 Attention for difficult groups Correction by oversampling in refreshment of 2009 (with SN) New immigrant panel (with Cross-cultural Psychology Tilburg; SN)

19 Response over time

20 LISS panel respondents About 30 minutes of questionnaires every month Paid for every completed questionnaire ( 15 /hour) Get invitation and reminders Can complete questionnaire at any time during the month

21 Response rates: per day

22 Response rates: per month

23 Use of the panel: examples

24

25

26 Examples Visual tools

27

28 Examples Paradata

29

30 Effect of age on number of clicks during answering process number of clicks Age

31 Examples: subsample Effects of illness babies in first year on labour participation parents: Pregnant women, follow 3 years! Effects of the economic crisis on household portfolio choice: Panel members who own stocks Random subsample or experimental groups: different conditions

32 Examples Video instruction

33

34 New forms of data collection

35 Biomarker data collection Blood cholesterol levels Diurnal salivary cortisol Internet weighting scale Accelerometer

36 Smartphone data collection Time use research Smartphone diary SCP

37 How to use the LISS panel

38 Two ways Send in proposal for collecting (new) data with the LISS panel 2. Use already collected data for your research project

39 Free datacollection: Academic researchers, irrespective of nationality Proposals can be submitted throughout the year Evaluation: Board of Overseers

40 Procedure: Submit to: Typically be between 2 and 5 pages Decision: 1-3 months Accept Revise and Resubmit Reject

41 Proposals: Summary (Nov 2011) Decision Board of Overseers Count Undecided (in review or revision) 21 Accepted 77 Rejected 14 Total

42 Some examples of studies

43 Internet and Cybercrime J. Wilsem, Leiden University Risk of becoming victim of threat During one year: 2% of panel members received threats by , SMS or chat site. 6% received traditional threats by letter or face-to-face 1.3% experienced both forms of threats Electronic threats rare among over 25 Personality trait impulsiveness plays a role.

44 Trust in ministers E. Wisse, Tilburg University Best known ministers: Prime Minister Jan Peter Balkenende Deputy prime minister Wouter Bos Deputy prime minister André Rouvoet Important traits: Reliability, honesty and competence Which minister has them: Reliability: Rouvoet, Plasterk and Balkenende Honesty: all equal Competence: Bos Panel study, repeated!

45 Weight and eating habits: D. de Ridder, Utrecht University Snack diary: Dieting people eat the same amount of snacks as non-dieting people Habits are the only strong predictor of amount of snacking People are not aware of their snacking habits Personality?

46 Ecomotion-index (4x per year): J. Leenheer, R. Pieters, Tilburg University Between 2009 and 2011: Increasing positive feelings about future personal finances Most positive: Young people, but decreasing VVD and CDA voters Most negative: People between 45 and 54, but increasing PVV and SP voters

47 LISS data Available for academic use longitudinal core study proposed studies Disseminated through website International XML-based standard for data documentation, DDI

48 LISS Core Study Household and family Economic situation and housing Work and schooling Social integration and leisure Health Personality Religion and ethnicity Politics and values LONGITUDINAL

49

50

51 How to use the immigrant panel

52 Immigrant panel 1.Possibility for proposals 2. Use the collected data at the website: At the lissdata.nl website

53 Proposal between 2 and 5 pages Download data