UX EVALUATION METHODS

Psychophysiological measurements

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Summary

E.g. heart beat, skin perspiration, facial muscles tell about the emotional state of the user. The physiological reactions are recorded with sensors attached to the participant. This objective data can be used in combination with self-report data to find out what the user experienced.

Description

User’s physiological responses are measured when comparing different designs or when interacting with a system.

Strengths

Investigates momentary experiences without intervening in the interaction

Weaknesses

Expensive setup;
Momentary emotions are important in some domains only

References describing the method

Mandryk, R.L., Inkpen, K., and Calvert, T.W. Using
psychophysiological techniques to measure user
experience with entertainment technologies. Behaviour and Information Technology (Special Issue on User Experience), 25,2, (2006), 141-158.