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For many research questions a single value can be very useful information. In addition, our ePROMs provide scores on the separate health items.

Such values can be used in clinical studies and national health surveys.
Values can even be normalized for use in cost-effectiveness analyses.


The cornerstone of our own developed measurement framework is an extended version of the Rasch model (item-response theory) that produces transparent metrics. This is the most robust approach currently available to measure subjective phenomena, such as health.


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