The Happiness Scale Interval Study

The Happiness Scale Interval Study, is designed to be used for survey questions on happiness using verbal response options. It is used to determine what degrees of happiness are denoted by such terms when used in particular questions and different languages. The method uses a web-based Scale Interval Recorder. First a description is given of this Scale Interval Recorder. Next, the differences with conventional scale transformation methods are discussed. This is followed by an exemplar application of the conventional methods and the Scale Interval Method to existing survey data. The results of these applications are mutually compared from the perspective of the comparability problem.