National surveys
Survey methodology
Quality control procedures
All surveys analysed included quality control procedures, in particular in relation
to questionnaire design, fieldwork monitoring, data processing and weighting.
Public availability
of survey documentation and questionnaire translations as far as relevant
was also a feature in many surveys.
In the case of the fourth
EWCS, an overall quality assurance framework
was put in place to ensure that in each phase of the survey implementation
established good practice in international social survey design was followed.
The quality control procedures regarding the EU-SILC is in the responsibility
of the member state statistical organisations.
In the context of the 'Working
Life Barometer for the Baltic Countries'
several expert groups were set up that took part in planning, design
of questionnaires, control of fieldwork etc.
23 out of 33 surveys included in this study employ pre-tests. The EWCS
uses follow-up interviews. Five survey apply both pre-tests and follow-up
interviews.
For the Finnish 'Working
Life Barometer' no pre-tests are used but it is stressed that the quasi panel design is a continuous
test.