The Distribution of Latencies Constrains Theories of Decision Time: A Test of the Random‐walk Model Using Numeric Comparison
Abstract The random-walk model for decision accurately predicts both mean reaction time and response accuracy as a function of signal strength and response criterion. Although few have examined the changes, the theory also predicts changes in the shape of the distribution of latencies. In a digit-comparison task, we used numeric distance to manipulate signal strength, and we used speed versus accuracy instructions to manipulate response criterion. Random-walk theory correctly predicted changes in the shape of the distribution of response times.
The purpose of this study was to propose a new experiment teaching mode of Probability and Statistics under today's information technology environment.Firstly,after analyzing the disadvantage of traditional teaching mode of Probability and Statistics,the paper presented a new reform thought which linked teaching organizers with such teaching factors as teaching object and teaching environment.Secondly,using campus network and statistics analysis software,the paper proposed a digital experimental teaching system of Probability and Statistics,in which teacher and student can be highly interactive with each other.Then,the paper discussed the realization of the system.This paper has provided a valuable reference for the reform of Probability and Statistics teaching.