D. Implicitly, unstructured questions give extra weight to respondents who are more articulate.
A study of donor behavior for the International Red Cross seeks to identify participation from consumers through indirect gifts such as purchasing items of which a portion of proceeds will benefit disaster victims. Because such purchases do not record whether an individual made the purchase decision as a form of donation, a survey will be used to identify this behavior. In writing the target questions for the study, the instrument designer should be aware of errors arising from the issue of _____.
A. Unstructured questions are not suitable for self-administered questionnaires.