Interactive Surveys incorporate pictures to represent the answers. The adage, "A picture is worth a thousand words", is well backed by statistical figures, as such surveys have shown 30%-40% higher response rates as compared to traditional html surveys.
Using AJAX and Animation, with Smart Validation Models, Interactive Surveys can decrease congnitive stress. Use of symbols and pictures is prominent at public places such as hospital, restaurants and in traffic signs, simply for the reason that the brain is able to understand and react to pictures better and quicker than to text. Moreover, a person weak with a particular language may not understand the meaning of a particular option when it is in text, but get it immediately when represented as a picture. These reasons make Interactive Surveys to be more productive.