1. Stimulus Probabilties--The Basic Analysis
Mean RT as a Function of Probability of a Stimulus This analysis is based on correct trials only, with practice trials omitted.

2. Stimulus Probabilities--Analysis of Accuracy
Proportion Correct Responses as a Function of Probability of a Stimulus Practice trials omitted.

3. Number of Choices--Inter-Subject Variability
This graph illustrates inter-subject variability. Each line shows the data for one subject. Note the range of individual differences in RT.

4. Stimulus Probability--Proportion Correct by Subject
Proportion of correct trials for each subject, across all conditions. Practice trials omitted.

5. Stimulus Probability--RT Distribution
Number of trials in each 50 ms "bin" of RT's.

6. Stimulus Probabilities--Trial-to-Trial RT's
Graph of Trial-to-Trial RT's (mean across subjects and conditions). The straight black line shows the linear trend across trials. All correct trials, practice omitted.