Читать книгу Handbook of Web Surveys - Jelke Bethlehem - Страница 54

In this case, the respondent is not allowed for skipping the answer to question 1.

An error message appears and the question is submitted again.

Figure 3.3 Error message for a compulsory question in the Nutrition & Health Survey

Interactivity provides advantages in the quality of the web or mobile web surveys by reducing imputation errors and item nonresponses (see Example 3.4). The desired degree of interactivity is guiding the questionnaire implementation, since more sophisticated interactivity actions are supported only from some specific programs.