Physiological arousal via electrodermal activity
The method utilises physiological arousal as an indicator for involvement and emotional state (arousal not valence). It is meant to also capture unconscious processes. Unobtrusive, not distracting, continuous measure, in situ
participants will be 'prepared' before the session: attachment of sensors that detect the 'sweating' of the palm of the hand; … in the data you can see peaks of changes of EDA that might be good indicators that something had an effect on the participant
objective; measure of intensity; unobtrusive; continuous measure; applicable in all phases
does not measure valence of emotional state; limitation regarding free movements; should only be used in combination with other measurements (like facial expression, questionnaires such as SAM) physiological reaction dependant of many other things as well
Andreassi, J.L. (2006). Psychophysiology: Human Behavior and Physiological Response, 4th Edition. Lawrence Erlbaum Associates, Mahweh, NJ.
References describing the method
Ward, R. & Marsden, P.H. (2003). Physiological responses to different WEB page designs. International Journal of Human-Computer-Studies, 59, 199-212.