2DES

Method suitability

Study type

Field studies
XLab studies
Online studies
Questionnaire

Development phase

Concepts
Early prototypes
XFunctional prototypes
Products on market

Studied period of experience

Before usage
Snapshots
XAn episode
Long-term UX

Evaluator / Info provider

UX experts
XOne user at a time
Groups of users
Pairs of users

Data

Qualitative
XQuantitative

Applications

XWeb services
XPC software
XMobile software
Hardware designs
Other:

Requirements

XTrained researcher
XSpecial equipment

Summary

Self-report measurement of the emotion expressed by a stimulus. 2DES is a computer program which is used to collect continuous ratings provided by the study participants.

Description

Participants report their emotion by moving the mouse in a space defined by the two bipolar dimensions valence and arousal. Both dimensions are labelled by little pictograms representing a human face (smiling of frowning for valence, with eyes and mouth wide open or closed for arousal).

Strengths

Particularly useful to study affective evaluation of product sounds

Weaknesses

A high fidelity prototype must be available

References describing the method

ENGAGE web site. Schubert, E. (1999). Measuring emotion continuously: Validity and reliability of the two-dimensional emotion-space. Australian Journal of Psychology, 51(3), 154-165.
Schubert, E. (2001). Continuous Measurement of Self-Report Emotional Response to Music. In P. Juslin and J. Sloboda (Eds.), Music and Emotion: Theory and Research. (pp. 393-414) Oxford University Press.

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