Algom D, Cohen-Raz L
J Exp Psychol Hum Percept Perform. 1984 Aug;10(4):486-501. doi: 10.1037//0096-1523.10.4.486.
Subjects made magnitude estimations of moving stimuli produced by a 10 X 10 factorial design of distances and durations. Both group and individual data obeyed the bilinear interaction prediction of a simple ratio model. The relation between perceived and actual velocity, as well as the psychophysical contingencies constructed from the marginal means of the design, could be described by a power function with an exponent of about 0.63 as a representative figure. Plotting subjective velocity against physical velocity with either duration or distance as the parameter resulted, respectively, in families of converging psychophysical power functions. Some implications of the results for velocity research, especially the usefulness of specifying the correct metric structure, are discussed.
受试者对由距离和时长的10×10析因设计产生的移动刺激进行量级估计。组数据和个体数据均符合简单比率模型的双线性交互预测。感知速度与实际速度之间的关系，以及根据设计的边际均值构建的心理物理学偶发事件，可以用一个指数约为0.63的幂函数来描述，作为一个代表性数字。以时长或距离为参数，将主观速度与物理速度作图，分别得到了收敛的心理物理学幂函数族。讨论了这些结果对速度研究的一些启示，特别是指定正确度量结构的有用性。
