Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com), Millisecond
Created: January 23, 2015
Last Modified: January 10, 2023 by K. Borchert (katjab@millisecond.com), Millisecond
Script Copyright © Millisecond Software, LLC
This script runs a computerized version of the Santa Barbara Solids Test (SBST); a test of spatial reasoning.
The implemented procedure is based on:
Cohen, C. A. & Hegarty, M. (2012). Inferring cross sections of 3D objects: A new spatial thinking test. Learning and Individual Differences, 22(6), 868-874.
Additional material were published at: https://spatiallearning.org/index.php/testsainstruments (obsolete 2023)
10 minutes
Participants see 29* 3-D figures cut in three cutting planes (horizonal, vertical, or oblique). 14 of the figures are cut in the oblique plane (one was dropped); 15 are cut in the vertical/horizontal plane. 10 problems represent cuts of simple figures, 10 problems represent cuts of joint figures, 9 problems represent cuts of embedded figures. The task is to select the correct cross section (viewed head-on) from amongst 4 possible choices.
•the test originally contained 30 figures but figure 3 was dropped from the test based on Dr. Cohen's recommendations.
(1) block.sample: presents one sample problem with feedback
(2) block.SBST: presents the 29 problems in order (no feedback is provided)
• 29 figures total (one figure dropped based on recommendations:)
• 14 of the figures are cut in the oblique plane (one was dropped);
15 are cut in the vertical/horizontal plane.
• 10 problems represent cuts of simple figures, 10 problems represent cuts of joint figures,
9 problems represent cuts of embedded figures
This script uses the stimuli published at:
https://spatiallearning.org/resource-info/Spatial_Ability_Tests/Santa_Barbara_Solids_Test_rev_1210.pdf
The problems and answer choices were created as separate *.jpg files in Paint.net by
Millisecond.
uses the instructions published at:
https://spatiallearning.org/resource-info/Spatial_Ability_Tests/Santa_Barbara_Solids_Test_rev_1210.pdf
The instructions are presented as htm-files that can be directly edited in any simple Text Editor such as
TextEdit (Mac) or Notepad (Win)
File Name: santabarbarasolidstest_summary*.iqdat
| Name | Description |
|---|---|
| inquisit.version | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| 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 |
| problemCount | Tracks the number of problems presented |
| propCorrect | Proportion correct overall (across all test problems) |
| meanRT | Mean response time (in ms) of selecting a correct option (across all test problems) |
| propEgocentrical | Proportion egocentrial selections |
| propCorrectH | Proportion correct horizontal cut plane problems |
| propCorrectV | Proportion correct vertical cut plane problems |
| propCorrectHv | Proportion correct vertical+horizonal cut plane problems |
| propCorrectO | Proportion correct oblique cut plance problems |
| propCorrectS | Proportion correct responses to Simple problems |
| propCorrectJ | Proportion correct responses to Joint problems |
| propCorrectE | Proportion correct responses to Embedded problems |
| meanRTH | Mean correct response time (in ms) to horizontal cut plane problems |
| meanRTV | Mean correct response time (in ms) to vertical cut plane problems |
| meanRTHv | Mean correct response time (in ms) to vertical+horizonal cut plane problems |
| meanRTO | Mean correct response time (in ms) to oblique cut plance problems |
| meanRTS | Mean correct response time (in ms) to responses to Simple problems |
| meanRTJ | Mean correct response time (in ms) to responses to Joint problems |
| meanRTE | Mean correct response time (in ms) to responses to Embedded problems |
File Name: santabarbarasolidstest_raw*.iqdat
| Name | Description |
|---|---|
| build | Inquisit version number |
| computer.platform | Device platform: win | mac |ios | android |
| date | Date the session was run |
| time | Time the session was run |
| subject, group, | With the current subject/groupnumber |
| session | Session number |
| blockCode | Name of the current block |
| blockNum | Number of the current block |
| trialCode | Name of the current trial |
| trialNum | Number of the current trial |
| problemCount | Tracks the number of problems presented |
| cuttingplane | 1 = vertical cut; 2 = horizontal cut; 3 = oblique cut |
| structure | 1 = simple; 2 = joint; 3 = embedded |
| stimulusItem.1 | The image of the current problem stimulusItem.2- |
| stimulusItem.5 | The images for response options A-D |
| egocentricalOption | Stores the current egocentrical answer choice |
| correctOption | Stores the currently correct answer choice |
| response | The participant's response (selection of answer choice) |
| respCat | "correct" vs. "egocentrial error" vs. "other error" |
| correct | The correctness of the response (1 = correct; 0 = incorrect) |
| latency | The response latency (in ms); measured from onset of problem |
| countCorrect | Counts all correct responses |
| countEgocentric | Counts egocentrial selections |
| countH | Counts all horizontal cut (h) figures |
| countV | Counts all vertical cut (v) figures |
| countO | Counts all oblique cut (o) figures |
| countCorrectH | Counts all correct horizontal cut (h) figures |
| countCorrectV | Counts all correct vertical cut (v) figures |
| countCorrectO | Counts all correct oblique cut (o) figures |
| countS | Counts all simple (s) figures |
| countJ | Counts all joint (j) figures |
| countE | Counts all embedded (e) figures |
| countCorrectS | Counts all correct simple (s) figures |
| countCorrectJ | Counts all correct joint (j) figures |
| countCorrectE | Counts all correct embedded (e) figures |
The procedure can be adjusted by setting the following parameters.
| Name | Description | Default |
|---|---|---|
| highlightDuration | Stores the duration (in ms) of the blue ring around the selected answer choice |