You can make a good argument by using AttrakDiff to demonstrate the effect of your design. AttrakDiff is a product evaluation questionnaire developed by Marc Hassenzahl, Michael Burmester, and Franz Koller to focus on both the usability and the pleasantness of the experience.
How it works
It’s based on a model that divides the product experience into four elements:
- The product quality intended by the designer
- The subjective perception and evaluation of the quality
- The independent pragmatic and hedonic qualities
- The behavioural and emotional consequences