| 摘要 |
A method for providing a graphical user interface (GUI) on a mobile device, including displaying in the GUI on the mobile device an option subset comprising at least one option to which a response is requested and displaying a feedback mechanism in the GUI on the mobile device configured to receive a reaction of an individual respondent in response to the at least one option in the displayed option subset, the individual respondent being from a respondent subset that is one of a plurality of respondent subsets taken from a respondent set and the option subset that is displayed in the GUI not being determined by the individual respondent and including fewer than all of a plurality of options in an option set from which the option subset is taken. |
