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Recent and forthcoming resources for cross-
national survey research: CESSDA PPP WP9 and ESDS
International
Jack KneeshawEconomic and Social Data Service
University of Essex, 27 January 2009
A brief tour of existing ESDS resources on
harmonisation/equivalenceFocus of this presentation is on cross-national research
resources but note ESDS-produced resources for UK data:
• http://www.esds.ac.uk/government/dv/
• http://www.esds.ac.uk/government/themes/
• http://www.esds.ac.uk/longitudinal/support/resources.asp
See also ONS - http://www.ons.gov.uk/about-statistics/harmonisation/index.html
Cross-national equivalence (1): The issue
• The issue:
– e.g. ESS
– e.g. Barometers, ISSP
– e.g. Eurostat, CNEF, SHARE
Ex ante-
Ex post-
*******************************• Problems for both approaches:
– concept, language, response (bias)
• Problems mainly for ex-post:– instrument (question), method (universe, sample, mode,
fieldwork)
Problems making comparisons
Cross-national equivalence (2): What’s already out there
• Resources– http://www.esds.ac.uk/International/resources/
research.asp– Centre for Comparative European Survey Data
(CCESD) – Comparative Survey Design and Implementation
(CSDI)– European Socio-economic Classification (ESeC) – European Data Center for Work and Welfare
(EDACwowe)– European Panel Analysis Group (EPAG) – Eurostat’s RAMON– Harry Ganzeboom’s International Stratification and
Mobility File (ISMF)– International Household Survey Network (IHSN)– Integrated Public Use Microdata Series (IPUMS) —
International– Network of Economic and Social Science
Infrastructures in Europe (NESSIE)
Cross-national equivalence (3): CESSDA PPP WP9
What is CESSDA?- umbrella organisation for European social science data archives
What is the PPP?- Preparatory Phase Project is a major new award totalling 2.7 million euros aimed at developing the CESSDA research infrastructure. Project consists of several interlinked yet individually-focused work packages, including WP9 …
What is WP9?- Building an Infrastructure for Content Harmonisation and Conversion– http://www.cessda.org/project/doc/wp09_descr2.pdf– http://www.cessda.org/project/outputs/wp09workshop1/
index.html
CESSDA PPP WP9
… continued …
“An impressive number of recent and continuing harmonisation efforts relating to aspects of social structure underline the high demand for harmonised data in the research community, …
What this series of independent efforts is mostly lacking, however, is a perspective to preserve and maintain the results over a time span that is much longer than the respective projects’ duration. …
… the key purpose of the present work package is to develop strategic options and future directions for preparing … CESSDA … to become a central focus for the collection, preservation, distribution, and further enrichment of such information, including the generation of additional harmonised datasets and tools for their discovery. …
Extending the range of such harmonised data via the new infrastructure will in particular foster contributions from individual researchers without special funding for harmonisation efforts.”
http://www.cessda.org/project/doc/wp09_descr2.pdf
CESSDA PPP WP9
… continued …
• Twin deliverables – – (1) CCCDB – Constructs, Classifications, Conversion DataBase– (2) QDB – Question DataBase
• CCCDB a ‘central warehouse’ of standards and classifications but also allow for ‘input-output’ operations allowing for translation across country-specific and time-specific classifications
• QDB – same principles as CCCDB but places survey question (e.g. questions on happiness) in methodological context
• CCCDB and QDB to interface with each other
CESSDA PPP WP9
… continued …
• PPP to be followed by implementation phase …
Cross-national equivalence (4): Undertaking Cross-national
Research (ESDS International)
• Small proof-of-concept project running parallel to CESSDA PPP WP9 but delivering sooner – hopefully
(1) What’s been asked on … e.g., TRUST?– produce inventory across main surveys for questions on
‘trust’– e.g.,
(2) How do the questions/methods/contexts differ?– ISSP, WVS, NDB, GSS …
Undertaking cross-national research
… continued …
• Various caveats:
– no funding; no commitment; just thinking aloud
– reliant on feedback from methods experts
– trial basis to estimate demand
– be clear what can’t be done
Undertaking cross-national research
… continued …
(2) How do the questions, methods, contexts differ?
Produce (multi-purpose) contextual metadata (paradata) file
– at survey level (i.e., ISSP-1996-GB) – vars to include universe, samp method, samp size, response, mode, translation detail, fieldwork dates, topic coverage – this is where harmonisation occurs and where expert feedback required
– what’s out-of-scope: inter alia, ‘events’, question position and
Undertaking Cross-national Research (ESDS International)
… continued …
Allows for a file to be constructed for a particular version of the trust question that includes many of the vars required for interpreting responses in their methodological context, e.g.:
Case Country Trust var More vars Context/paradata variables matched in
ISSP1998 1 TRUST01 >>>ISSP1998 2 TRUST01 >>>user pools cross-sections …ESS2002 1 TRUST01 >>>ESS2002 2 TRUST01 >>>
Key: Taken from original file; matched in using context/paradata file
In short
• Many resources exist already, almost certainly underutilised
• Resources being developed– CESSDA PPP WP9– ESDS International
• Please get in touch, offer comment!
