Last Modified: January 26, 2024 by K. Borchert (katjab@millisecond.com), Millisecond
Script Copyright © Millisecond Software, LLC
This script implements an example Stroop test with voice recording. The classic Stroop paradigm demonstrates the interference of word meaning on the naming of the color in which the words are written as measured by reaction time/accuracy differences to color-meaning congruent and color-meaning incongruent combinations.
This scripts collects spoken words as input and stores the voicerecords for manually scoring or with help of the following 'Tools -> Speech Recognition -> Analyze Recorded Responses'. The responses are not automatically scored.
Stroop, J, R. (1935). Studies of interference in serial verbal reactions. Journal of Experimental Psychology, 18, 643-662.
5 minutes
Participants see color words in different colors. Some of the colorwords are printed in congruent colors (word meaning and color coincide), some of the colorwords are printed in incongruent colors (word meaning and color diverge). Participants are asked to say out loud the color of the word.
this script stores voice records that need to be manually scored or with help of Tools -> Speech Recognition -> Analyze Recorded Responses
24 trials: 12 congruent, 12 incongruent
12 Congruent Trials:
- 3 red words (present word: red),
- 3 green words (present word: green),
- 3 yellow words (present word yellow),
- 3 blue words (present word blue)
12 Incongruent Trials:
- 3 red words (present words: yellow, blue, green),
- 3 green words (present words: yellow red, blue),
- 3 yellow words (present words: red, blue, green),
- 3 blue words (present words: yellow, green, red)
The four color words: red, green, blue, yellow
size: 6% of canvas height
font: Arial
provided by Millisecond - can be edited under section Editable Instructions
File Name: stroopwithvoicerecording_summary*.iqdat
| Name | Description |
|---|---|
| inquisit.version | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| computer.touch | 0 = device has no touchscreen capabilities; 1 = device has touchscreen capabilities |
| computer.hasKeyboard | 0 = no external keyboard detected; 1 = external keyboard detected |
| startDate | Date the session was run |
| startTime | Time the session was run |
| subjectId | Participant ID |
| groupId | Group number |
| sessionId | Session number |
| elapsedTime | Session duration in ms |
| completed | 0 = Test was not completed 1 = Test was completed |
File Name: stroopwithvoicerecording_raw*.iqdat
| Name | Description |
|---|---|
| build | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| computer.touch | 0 = device has no touchscreen capabilities; 1 = device has touchscreen capabilities |
| computer.hasKeyboard | 0 = no external keyboard detected; 1 = external keyboard detected |
| date | Date the session was run |
| time | Time the session was run |
| subject | Participant ID |
| group | Group number |
| session | Session number |
| blockcode | The name the current block (built-in Inquisit variable) |
| blocknum | The number of the current block (built-in Inquisit variable) |
| trialcode | The name of the currently recorded trial (built-in Inquisit variable) |
| trialnum | The number of the currently recorded trial (built-in Inquisit variable) trialnum is a built-in Inquisit variable; it counts all trials run even those that do not store data to the data file. |
| congruence | 1 = congruent 2 = incongruent |
| stimulusitem | The presented stimulus |
| response | The participant's response (filename of voicerecord) |
| latency | The response latency (in ms); measured from: onset of word |