speed {depmix}R Documentation

Speed Accuracy Switching Data


This data set is a bivariate series of reaction times and accuracy scores of a single subject switching between slow and accurate responding and fast guessing on a lexical decision task. The slow and accurate responding, and the fast guessing can be modelled using two states, with a switching regime between them. The dataset further contains a third variable called Pacc, representing the relative pay-off for accurate responding, which is on a scale of zero to one. The value of Pacc was varied during the experiment to induce the switching. This data set is a subset of data from experiment 2 in Van der Maas et al, 2005.




An object of class markovdata.


Han L. J. Van der Maas, Conor V. Dolan and Peter C. M. Molenaar (2005), Phase Transitions in the Trade-Off between Speed and Accuracy in Choice Reaction Time Tasks. Manuscript in revision.

[Package depmix version 0.9.16 Index]