The study focuses on feedback mechanisms in matrix questions.
In August 2008, a questionnaire on feedback in matrix questions was administered to the LISS panel. This questionnaire dealt with attention and usability in online surveys from a respondents’ perspective. The experiment used grey out and highlighting. After having answered an item, either the active table cell or the whole row was shaded to indicate that no further action is needed for this item and that a response has been recorded. Highlight was used as a mouse-over effect, the table cell or the whole row under the mouse pointer was shaded to indicate the focus of attention. This shading was moving along with the mouse pointer.