stroopdata {prepdat}R Documentation

Reaction-times and accuracy for color naming in a Stroop task (e.g., Stroop, 1935).

Description

A dataset containing reaction-times, accuracy, and other attributes of 5400 experimental trials.

Usage

data(stroopdata)

Format

A data frame with 5401 rows and 10 columns:

subject

Case identifier, in numerals

block

Percent of congruent target_type trials in a block. 1 means 80 percent congruent, 2 means 20 percent congruent

age

Age of subject, in integers

gender

Gender of subject, in integers. 1 means male, 2 means female

order

Order of blocks, in integers. 1 means subject did 80 percent congruent block first and 20 percent congruent block second. 2 means subject did 20 percent congruent block first and 80 percent congruent block second.

font_size

Font size of the stimulus, in integers

trial_num

Trial number, in integers

target_type

Type of stimulus for a given trial. 1 means congruent stimulus, 2 means incongruent stimulus

rt

Reaction time, in milliseconds

ac

Accuracy, 1 means correct, 0 means incorrect

References

Stroop, J. R. (1935). Studies of interference in serial verbal reactions. Journal of experimental psychology, 18(6), 643.

Examples

data(stroopdata)
head(stroopdata)

[Package prepdat version 1.0.8 Index]