1. Pilot testing the WG-SS in the Netherlands Kim Knoops Jan-Willem Bruggink Coen van Gool
Statistics Netherlands (CBS)

2. Background
Disability data collected in multiple ways: need for efficiency
All indicators are used in same survey (Health survey / Eu-HIS), some even in multiple (Eu-SILC/Eu-LFS)
To guide that process we need to know whether these disability indicators yield similar information
Objective: test WG-SS feasibility and face validity
Pilot testing the WG-SS in the Netherlands | 8 December 2016

3. GALI
EU measure
For at least the past six months, to what extent have you been limited because of a health problem in activities people usually do?
-severely limited
-limited but not severely
-not limited at all
Refers to general restrictions in participation without specifying the type of activity concerned
Mixed success, yet ubiquitous in ESS
Pilot testing the WG-SS in the Netherlands | 8 December 2016

4. WG-SS pilot test
Several of the WG – SS items were already in the Health Survey, others were introduced.
Some were not introduced (walking), some were split
All items were in the same block of questions but not back to back
The WG-SS ran for 5 months in 2015
Respondents either got WG-SS (n≈2800) or the OECD questions (n≈5300), but all got GALI (n=8100)
Pilot testing the WG-SS in the Netherlands | 8 December 2016

5. OECD against GALI
Pilot testing the WG-SS in the Netherlands | 8 December 2016

6. WG-SS domain scores against GALI
Pilot testing the WG-SS in the Netherlands | 8 December 2016

7. WG-SS summary measure against age and GALI
Pilot testing the WG-SS in the Netherlands | 8 December 2016

8. Conclusions Limitations Next steps
Face validity demonstrated based on prevalence and crosstables
No proper cognitive testing, nor field testing
Items split in two: sum first before using in composite measures?
Separate SS items scattered throughout survey, no proper introduction…
Recommend cognitive test
Prepare for EHIS 2019
Limitations
Next steps
Pilot testing the WG-SS in the Netherlands | 8 December 2016

9. Pilot testing the WG-SS in the Netherlands | 8 December 2016