___________________________________________________________________________________________________________________ MR PEANUT TEST (MrPeanut-P) - a test of visuo-spatial memory in children- ___________________________________________________________________________________________________________________ Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC Date: 01-22-2015 last updated: 02-25-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC Script Copyright © 02-25-2022 Millisecond Software ___________________________________________________________________________________________________________________ BACKGROUND INFO ___________________________________________________________________________________________________________________ This script runs a computerized version of the "MrPeanut task-P", a task of visuo-spatial memory for children. The implemented procedure is based on the following publications: (1) DE RIBAUPIERRE, Anik, BAILLEUX, Christine. Development of attentional capacity in childhood: A longitudinal study. In: Weinert, F.E. & Schneider, W. Memory performance and competencies: Issues in growth and development. Mahwah NJ : Lauwrence Erlbaum, 1995. p. 45-70 and (2) Morra S. (1994). Issues in working memory measurement: Testing for M capacity. International Journal of Behavioral Development, 17, 143-159 (see MrCucumber Test) ___________________________________________________________________________________________________________________ TASK DESCRIPTION ___________________________________________________________________________________________________________________ Participants see a clown figure called "Mr Peanut" who decorates himself with purple stickers (in this script: 14 possible locations) for a set amount of time. Then Mr Peanut disappears and reappears without stickers. Participants are asked to click on the locations of the stickers as they recall them. Incorrect selections can be corrected (selecting a body part that already has a sticker results in sticker deletion). Recall for one image is over if a "Done" button is selected. This is NOT a timed task. In this script: 2 ways of testing (see section Editable Values -> parameters.progressivetesting) 1) progressive testing (see Morra, 1994): levels (1-7) are tested progressively. Participants get 3 trials per level. If a level is successfully mastered (at least one correct attempt per level), participants move up a level. If all 3 attempts per level fail, the test concludes. A values.progressivetotalscore is calculated based on the rules outlined by Morra (1994): * for consecutive levels for which participant gets over 50% (for 3 trials -> 2/3) of the trials correct -> assign 1 * for remaining levels: add 1/3 point (depends on parameters.trialsperlevel) for each correct response per level The order of the images is predetermined for the progressive testing mode (default setting) 2) all 21 images (7 levels * 3 images/level) are tested according to settings of list.indexsequence (see section Editable Lists -> Test Lists for more information) (either in random order or in a pre-determined order). This set-up is more in line with De Ribaupierre & Bailleux (1995). ___________________________________________________________________________________________________________________ DURATION ___________________________________________________________________________________________________________________ the default set-up of the script takes appr. 10 minutes to complete (depends on number of levels tested) ___________________________________________________________________________________________________________________ DATA FILE INFORMATION ___________________________________________________________________________________________________________________ The default data stored in the data files are: (1) Raw data file: 'mrpeanut_p_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. Parameter-progressivetesting: true (1) (default setting) = levels are tested progressively with 3 trials per level (if all three attempts fail at a level, the test concludes) false (0) = 21 images are tested (7 levels * 3 images per level) in a random order attempts/ totaltrials: tracks the number of attempts/trials started across levels picpresentationtime: duration in ms that current Mr Peanut is presented index: the currently selected image index number 1, 2, 3 => 3 images for level 1 4, 5, 6 => 3 images for level 2 7, 8, 9 => 3 images for level 3 10, 11, 12 => 3 images for level 4 13, 14, 15 => 3 images for level 5 16, 17, 18 => 3 images for level 6 19, 20, 21 => 3 images for level 7 level: current level tested (1-7) count_stickers: counts the number of stickers placed on the current Mr Peanut countcorr_stickers: counts the correctly placed stickers per attempt on the current Mr Peanut errorattempt: 1 = error; (overall error evaluation) 0 = correct (placement of the correct number of stickers was correct) consecutivescoring: tracks whether consecutive scoring still applies to the current level correctperlevel: sums up the correct responses per level progressivetotalscore: scoring for progressive testing: (see Morra, 1994) * for consecutive levels for which participant gets over 50% (for 3 trials -> 2/3) of the trials correct -> assign 1 * for remaining levels: add 1/3 point for each correct response per level (depends on Parameter-trialsperlevel) correctattempts: calculates the number of correct attempts finallevel: highest successful (at least one correct response) level responsestring: stores all the selected body parts of the current picture in the order they were selected/de-selected stop: 1 = stop condition has been met; 0 = otherwise Information about the currently presented image: nr_stickers: stores the number of stickers of the currently presented Mr Peanut leg_L - arm_L: variables that store whether the currently presented Mr Peanut presented the following stickers 1 = a sticker was presented on respective body part 0 = no sticker on body part was presented leg_R_selected- arm_L_selected: 1 = respective body part was decorated by participant with a sticker; 0 = body part was not decorated by participant (2) Summary data file: 'mrpeanut_p__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) Parameter-progressivetesting: true (1) (default setting) = levels are tested progressively with 3 trials per level (if all three attempts fail at a level, the test concludes) false (0) = 21 images are tested (7 levels * 3 images per level) in a random order Parameter-maxlevel: maximumm number of levels tested (default: 7) finallevel: highest successful (at least one correct response) level totaltrials: tracks the number of trials across levels errorattempts: calculates the number of incorrect attempts correctattempts: the number of correct attempts progressivetotalscore: scoring for progressive testing: (see Morra, 1994) * for consecutive levels for which participant gets over 50% (for 3 trials -> 2/3) of the trials correct -> assign 1 * for remaining levels: add 1/3 point for each correct response per level (depends on Parameter-trialsperlevel) ___________________________________________________________________________________________________________________ EXPERIMENTAL SET-UP ___________________________________________________________________________________________________________________ 1. Instructions: includes a training to point to the sticker positions while the decorated Mr Peanut is still visible 2. Practice (3 trials): -> Incorrect trials are repeated until correct 3. Test: 7 levels with 3 trials each -> trial.presentpic: retrieves relevant sticker information for this picture and decorates the empty Mr. Peanut picture accordingly. The duration of trial.presentpic can be set separately for each level under section "Editable Values". -> trial.recall: lets participants select the 14 different body parts. Selections can be changed until the "done" button is selected. -> trial.summary: assesses the accuracy of the responses DV (progressive testing): values.progressivetotalscore (see Morra, 1994) scoring for progressive testing: * for consecutive levels for which participant gets over 50% (for 3 trials -> 2/3) of the trials correct -> assign 1 * for remaining levels: add 1/3 (depends on parameters.trialsperlevel) point for each correct response per level ___________________________________________________________________________________________________________________ STIMULI ___________________________________________________________________________________________________________________ under Editable Code -> Editable Stimuli -> item.mrPeanut See section "Editable Lists" for lists that control the number and location of stickers for practice and test sessions. Lists can be edited if different sticker arrangements should be run. ___________________________________________________________________________________________________________________ INSTRUCTIONS ___________________________________________________________________________________________________________________ provided by Millisecond Software under Editable Code -> Editable Instructions The instructions are based on those used by Dr. S. Morra. ___________________________________________________________________________________________________________________ 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. The parameters you can change are: /progressivetesting: true (default setting) = levels are tested progressively with 3 trials per level (if all three attempts fail at a level, the test concludes) false = 21 images are tested (7 levels * 3 images per level) in a random order /picpresentationtime1- /picpresentationtime7: the time the current picture is presented in ms depending on level (default: 1000ms per sticker) /recalldelay: delay of recall trial in ms (default: 1000ms) to wipe out iconic memory /iti: the intertrial interval /stickerheight: controls the size of the response buttons; in % of canvas height (default: 10%) /trialsperlevel: number of images per level (default: 3) !Note: this should only be edited if the sticker lists under section "Editable Lists" are changed accordingly /maxlevel: maximumm number of levels tested (default: 7) !Note: this should only be edited if the sticker lists under section "Editable Lists" are changed accordingly