National surveys
Survey methodology
Data gathering
The most frequently used method for data gathering are face to face interviews,
either exclusively or as one of the methods.
Other measures used are telephone, mail, internet, and written questionnaires.
Whereas some surveys only use face to face interviews others use a combination
of several procedures.
In 23 of the surveys investigated the interview takes place exclusively
at home. In the case of those surveys that are exclusively addressed
at the business owner or manager the interview takes place at the workplace.
One example is the 'Continuing Vocational Training Survey'. For surveys
addressed both at employees and employers, such as the Spanish
'National
Working Conditions Survey' (ENCT)
and the 'Workplace Health and Safety Survey' (WHASS) in the United Kingdom, interviews take place at the
workplace or at home and at the workplace.
In the case of all three Swedish surveys, interviews are conducted at the workplace, at home, or in other ways including the use of mobile telephone interviews. Both Dutch surveys, the Netherlands 'Working Conditions Survey' (NEA) and the 'TNO Work Situation Survey' (TAS), employ mail questionnaires.