Ring Measure
The Ring measure was devised by Wim B. G. Liebrand in 1984 and is based on the geometric SVO framework proposed by Griesinger and Livingson in 1973. In the Ring measure, subjects are asked to choose between 24 pairs of options that allocate money to the subject and the "other". The 24 pairs of outcomes correspond to equally spaced adjacent own-other-payoff allocations on an SVO ring, i.e. a circle with a certain radius centered at the origin of the Cartesian plane. The vertical axis (y) measures the amount of points or money allocated to the other and the horizontal axis (x) measures the amount allocated to the self. Each pair of outcomes corresponds to two adjacent points on the circle. Adding up a subject's 24 choices yields a motivational vector with a certain length and angle. The length of the vector indicates the consistency of a subject's choice behavior, while the angle indicates that subject's SVO. Subjects are then categorized into one out of eight SVO categories according to their SVO angle, given a sufficiently consistent choice pattern. This measure allows for the detection of uncommon pathological SVOs, such as masochism, sadomasochism, or martyrdom, which would indicate that a subject attaches a negative weight to the outcome for the self given the utility function described above.
Read more about this topic: Social Value Orientations, SVO Measurement
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