Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond
Created: January 29, 2020
Last Modified: January 02, 2025 by K. Borchert (katjab@millisecond.com), Millisecond
Script Copyright © Millisecond Software, LLC
This script implements subtest2 'AFFECT DISCRIMINATION' of the Comprehensive Affective Testing System - Reduced (CATS-R).
The CATS and CATS-R were created by: Sarah G. Schaffer, PhD Karen B. Froming, PhD Amanda L. Gregory, PhD C. Michael Levy, PhD Paul Ekman, PhD
The script runs with mouse and touch input.
Emotion Processing: The Comprehensive Affective Testing System. User Manual. Published 2006 by Psychology Software Inc
2 minutes
Subtest2: AFFECT DISCRIMINATION
Participants are presented 12 pairs of vertically stacked faces and have to decide whether the faces are of the same person of whether the faces are of different people. The two faces always come from the same actor but the emotion the actor is showing may or may not be the same (i.e., Happy, Sad, Angry, Frightened, Surprised, Disgusted, or Neutral)
1 Testblock of 12 trials
- 6 trials with identical faces
- 6 trials different faces
The order of the images is predetermined.
Participants can select button 'same' or 'different'. Responses can be changed until 'next' is pressed.
If button 'repeat' is pressed, nothing happens in this script as the images are still on screen.
By setting parameters.showadvanceButton to true, a '?'-button appears in the upper right corner.
If pressed, the next scheduled test item is skipped.
based on originals - can be edited under section Editable Stimuli
based on originals - can be edited in file catsr_subtest2_instructions_inc.iqjs
Means and Standard Deviations used to calculate z-scores are taken from the original User Manual
(see above for reference)
File Name: catsr_subtest2_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 |
| subTest | "subtest2" |
| age | The age of the participant (if demographics were collected) |
| gender | Female; Male; Other (if demographics were collected) |
| taskOrder | The selected task order (if demographics were collected) |
| t2RawScore | The number of correct responses in subtest2 |
| t2RawScoreCorrected | The number of correct responses in subtest2, corrected in this subtest rawscores get corrected for males over 39 by adding +1 to the rawscore |
| t2ZScore | The z-score for the corrected t2RawScore z-scores get calculated using the overall mean and standard deviation |
| t2PropCorrect | Proportion correct responses in subtest2 |
| t2RT | Mean response time (in ms) in subtest2; measured from onset of image until 'nextButton' is pressed |
| t2CorrRT | Mean response time (in ms) of CORRECT responses in subtest2; measured from onset of image until 'nextButton' is pressed |
Individual Responses |
|
| t2t1 | Q1 accuracy (1 or 0) |
| t2t2 | Q2 accuracy (1 or 0) |
| t2t3 | Q3 accuracy (1 or 0) |
| t2t4 | Q4 accuracy (1 or 0) |
| t2t5 | Q5 accuracy (1 or 0) |
| t2t6 | Q6 accuracy (1 or 0) |
| t2t7 | Q7 accuracy (1 or 0) |
| t2t8 | Q8 accuracy (1 or 0) |
| t2t9 | Q9 accuracy (1 or 0) |
| t2t10 | Q10 accuracy (1 or 0) |
| t2t11 | Q11 accuracy (1 or 0) |
| t2t12 | Q12 accuracy (1 or 0) |
File Name: catsr_subtest2_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 |
| subTest | "subtest2" |
| age | The age of the participant (if demographics were collected) |
| gender | Female; Male; Other (if demographics were collected) |
| taskOrder | The selected task order (if demographics were collected) |
| 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. |
| trialCount | Trial counter |
| subTest2TestItem | The index of the selected image |
| testItem | The presented image |
| correctResponse | The dedicated correct response 1 = same 2 = different |
| selectedResponse | 'same' or 'different' |
| correct | Accuracy of response: 1 = correct response; 0 = otherwise |
| rt | Cumulative response latency: measured from onset of image until 'nextButton' is pressed |
The procedure can be adjusted by setting the following parameters.
| Name | Description | Default |
|---|---|---|
| showAdvanceButton | True = advanceButton button (to skip a trial) is presented in the upper right corner as a '?' false = no advanceButton button is presented | false |