Color discrimination ability was measured at four spectral regions usually named blue, green, yellow, and red Two methods, temporal forced-choice and phenomenal report, were compared Data suggest that for color discrimination, phenomenal report is a preferable technique

The effect of forced choice on color discrimination

Modelling consumer choice through the random regret minimization model : An application in the food domain

https://link.springer.com/content/pdf/10.3758%2FBF03209923.pdf

The comparative adequacy of various psychophysical procedures employed to measure visual thresholds has been investigated. Adequacy is defined by: (a) reliability; (b) inferred validity; and (c) sensory-determinacy Reliability refers to the extent to which repetitions of measurements made under presumably identical experimental conditions differ from each other. Inferred validity refers to the extent to which measurements depend upon variables which are generally conceded to be irrelevant to the visual functions of interest. Sensory-determinacy refers to the absolute magnitude of the threshold. The lower the threshold, the more sensory-determinate it is considered to be. Procedural variables which have been studied include the response utilized by the subject to indicate discrimination; the number, spacing, and order of light intensities presented in the measurement series; the general attitude which the subject adopts; and the extent to which the subject is given knowledge of the correctness of his responses. Psychophysical procedures have been found which appear to have optimum reliability, validity, and sensory-determinacy.

Studies of psychophysical methods for measuring visual thresholds.

The comparative adequacy of the method of limits, the method of constant stimulus differences, and the method of adjustment was studied by using three criteria suggested by Blackwell. It was concluded that the method of constant stimulus differences was the most adequate and the method of adjustment the least adequate for determining sensitivity to color differences.

The effect of forced choice on color discrimination

Citations

Modelling consumer choice through the random regret minimization model : An application in the food domain

References

Studies of psychophysical methods for measuring visual thresholds.

Discrimination of color. I. Comparison of three psychophysical methods

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