___________________________________________________________________________________________________________________ SANTA BARBARA SOLIDS TEST (SBST) ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 02-23-2015 last updated: 02-24-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 02-24-2022 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ 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 published at: http://spatiallearning.org/index.php/testsainstruments ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ 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. ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 10 minutes to complete ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'santabarbarasolidstest_raw*.iqdat' (a separate file for each participant) build: The specific Inquisit version used (the 'build') that was run computer.platform: the platform the script was run on (win/mac/ios/android) date, time: date and time script was run subject, group, with the current subject/groupnumber session: with the current session id blockcode, blocknum: the name and number of the current block (built-in Inquisit variable) trialcode, trialnum: the name and number of the currently recorded trial (built-in Inquisit variable) Note: trialnum is a built-in Inquisit variable; it counts all trials run; even those that do not store data to the data file such as feedback trials. Thus, trialnum may not reflect the number of main trials run per block. 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 count_egocentric: counts egocentrial selections count_h: counts all horizontal cut (h) figures count_v: counts all vertical cut (v) figures count_o: counts all oblique cut (o) figures countcorrect_h: counts all correct horizontal cut (h) figures countcorrect_v: counts all correct vertical cut (v) figures countcorrect_o: counts all correct oblique cut (o) figures count_s: counts all simple (s) figures count_j: counts all joint (j) figures count_e: counts all embedded (e) figures countcorrect_s: counts all correct simple (s) figures countcorrect_j: counts all correct joint (j) figures countcorrect_e: counts all correct embedded (e) figures (2) Summary data file: 'santabarbarasolidstest_summary*.iqdat' (a separate file for each participant) inquisit.version: Inquisit version run computer.platform: the platform the script was run on (win/mac/ios/android) startDate: date script was run startTime: time script was started subjectid: assigned subject id number groupid: assigned group id number sessionid: assigned session id number elapsedTime: time it took to run script (in ms); measured from onset to offset of script completed: 0 = script was not completed (prematurely aborted); 1 = script was completed (all conditions run) 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 propcorrect_h: proportion correct horizontal cut plane problems propcorrect_v: proportion correct vertical cut plane problems propcorrect_hv: proportion correct vertical+horizonal cut plane problems propcorrect_o: proportion correct oblique cut plance problems propcorrect_s: proportion correct responses to Simple problems propcorrect_j: proportion correct responses to Joint problems propcorrect_e: proportion correct responses to Embedded problems meanRT_h: mean correct response time (in ms) to horizontal cut plane problems meanRT_v: mean correct response time (in ms) to vertical cut plane problems meanRT_hv: mean correct response time (in ms) to vertical+horizonal cut plane problems meanRT_o: mean correct response time (in ms) to oblique cut plance problems meanRT_s: mean correct response time (in ms) to responses to Simple problems meanRT_j: mean correct response time (in ms) to responses to Joint problems meanRT_e: mean correct response time (in ms) to responses to Embedded problems ___________________________________________________________________________________________________________________ EXPERIMENTAL SET-UP ___________________________________________________________________________________________________________________ (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 ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ This script uses the stimuli published at: http://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 Software. ___________________________________________________________________________________________________________________ INSTRUCTIONS ___________________________________________________________________________________________________________________ uses the instructions published at: http://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) ___________________________________________________________________________________________________________________ EDITABLE CODE ___________________________________________________________________________________________________________________ check below for (relatively) easily editable parameters, stimuli, instructions etc. Keep in mind that you can use this script as a template and therefore always "mess" with the entire code to further customize your experiment. /highlightduration: stores the duration (in ms) of the blue ring around the selected answer choice