6-4-2019 6-4-2019

Introducing ourselves CentERdata, Research Institute Tilburg University, the Netherlands Survey Research Maarten Streefkerk Suzan Elshout IT Edwin de Vet Alerk Amin 2 6-4-2019

CentERdata / LISS Funded by the Dutch science foundation (NWO) 6-4-2019 CentERdata / LISS Funded by the Dutch science foundation (NWO) Providing a new research facility for social sciences LISS panel + LISS data archive 6-4-2019

LISS panel Online panel of 5000 households 6-4-2019 LISS panel Online panel of 5000 households 8000 individuals (>= 16 years) Questionnaires each month, 30 min. Incentive 15 euro an hour (average) Representative for the Dutch population: age, sexe At no cost for the researchers that do a proposal for a study/questionnaire. 6-4-2019

Type of Questionnaires 6-4-2019 Type of Questionnaires 1. The “household box”: Background Variables (on demand) 2. Core questionnaires: Health, Personality (longitudinal) 3. Assembled questionnaires: Proposed by external researchers 4. Panel & Data Quality 6-4-2019

Current workflow 1/2 Design & Collection Paper version Blaise (IS) version Field work (one month) 6 6-4-2019

Current workflow 2/2 Dissemination / archiving SPSS (derived from bdb) + Codebook Meta data (XML export of SPSS-file) Import to archive View the data online in a user friendly environment: LISS data archive 7 6-4-2019

Questasy Web application based on DDI 3 Manages data & metadata 6-4-2019 Questasy Web application based on DDI 3 Manages data & metadata Administrator Interface Data entry without DDI knowledge Live in January 2009 Researcher Interface Browse/search metadata, download data Live in March 2009 Questasy is a web application Manages the metadata and data files, primarily for longitudinal panels The admin interface went live in January 2009, and that’s when metadata entry started. The researcher interface went live 2 months later for researchers to access the data/metadata 4/6/2019

New developments Since EDDI 10 - Utrecht Multi panel support Theme support Search Engine Optimization Variable basket 6-4-2019

Questasy Features Multiple panels Agency-wide application 6-4-2019 Questasy Features Multiple panels Agency-wide application Question bank (DDI ResourcePackages) We started a new Immigrant panel, of 2400 individuals of non-dutch descent. Many questions are shared between the panels, and we want this information readily available to researchers for comparative analysis. 4/6/2019

LISS panel Core Questionnaire: Wave 1 Wave 2 Single Wave Study: Work & Schooling Wave 1 Wave 2 Single Wave Study: Higher Order Risk … 11 6-4-2019

12 Agency LISS panel Core Questionnaire A Single Wave Study A Immigrant panel 12 6-4-2019

Questasy Features Multiple panels Themes Change site layout and style 6-4-2019 Questasy Features Multiple panels Themes Change site layout and style Override views and/or elements I’ll show an example theme later in the presentation 4/6/2019

Questasy Features Multiple panels Themes Search engine optimization 6-4-2019 Questasy Features Multiple panels Themes Search engine optimization Increased PageRank Doubled traffic from search engines Traffic from search engines went from about 15% to 22% of our traffic sources. 4/6/2019

Variable basket Creating custom variable extracts 6-4-2019 Variable basket Creating custom variable extracts Integrated into Questasy interface Data warehouse Multiple “baskets” per user Generating data sets on the fly Download in several data formats Custom codebooks on the fly In both HTML as PDF (Docbook XML based) LIVE DEMO 4/6/2019

Licensing Free License agreement available Including source code License agreement available Available for non-profit scientific & government institutes 4/6/2019

CentERdata: www.centerdata.nl/en LISS panel www.lissdata.nl Download data: www.lissdata.nl/dataarchive 17 6-4-2019

6-4-2019