depmixS4 (version 1.0-2)

speed: Speed Accuracy Switching Data

Description

This data set is a bivariate series of response times and accuracy scores of a single participant switching between slow/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 from participant A in experiment 1a from Dutilh et al (2010).

Usage

data(speed)

source

Gilles Dutilh, Ingmar Visser, Eric-Jan Wagenmakers, & Han L. J. van der Maas. A Phase Transition Model for the Speed-Accuracy Trade-Off in Response Time Experiments. 2010, submitted for publication. Please contact [e-mail] for preprints and more information.

Examples

data(speed)
## maybe str(speed) ; plot(speed) ...