The Happiness Scale Interval Study deals with survey questions on happiness, using verbal response options, such as ‘very happy’ and ‘pretty happy’

The second option assumes the happiness distribution to be described as a beta distribution on the interval with two shape parameters

The basic assumption of this approach is that every respondent in the application phase with R = Rj will report this rating on the basis of his happiness feeling which corresponds to an H-value in the interval (bj-1, bj]

The essential difference is the replacement of the transformed code number of the categories with the empirical mid-interval values, but the conversion of sample results into information on the population happiness distribution follows identical lines

The observations are available http://worlddatabaseof happiness.eur.nl/scalestudy/datafiles/first100cases.xls and the results have been described by, Chap

In a paper we will evaluate the application of this approach to a number of verbal scales and test to what extent the underlying assumptions and the model can be corroborated or not

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