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The Three-Step Test-Interview (TSTI): an observation-based method for pretesting self-completion questionnaires [journal article]
Source: Survey Research Methods, 2 (2008) 3. p.143-150
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Author(s): Hak, Tony; Veer, Kees van der; Jansen, Harrie
Source: Survey Research Methods, 2 (2008) 3. p.143-150