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									MR PEANUT TEST (MrPeanut-P)
SCRIPT INFO

Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 01-22-2015
last updated: 08-15-2016 by K.Borchert (katjab@millisecond.com) for Millisecond Software LLC

Copyright © 08-15-2016 Millisecond Software


BACKGROUND INFO

											*Purpose*
This script runs a computerized version of the "MrPeanut-P" test 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)

The Mr Peanut task tests visuo-spatial memory in children. 
(only location of stickers is important in the Mr Peanut - P script)


											  *Task*
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).


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:							Inquisit build
computer.platform:				the platform the script was run on
date, time, subject, group:		date and time script was run with the current subject/groupnumber 
blockcode, blocknum:			the name and number of the current block

trialcode, trialnum: 			the name and number of the currently recorded trial
									(Note: not all trials that are run might record data) 
/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
/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)
/leg_R_selected-
/arm_L_selected:				1 = respective body part is selected by participant; 0 = body part is not selected by participant
/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; 0 = correct
/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 parameters.trialsperlevel)

/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

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 presents the following sticker
								1 = sticker on body part
								0 = no sticker on body part



(2) Summary data file: 'MrPeanut_P_summary*.iqdat' (a separate file for each participant)

script.startdate:				date script was run
script.starttime:				time script was started
script.subjectid:				subject id number
script.groupid:					group id number
script.elapsedtime:				time it took to run script (in ms)
computer.platform:				the platform the script was run on
/completed:						0 = script was not completed (prematurely aborted); 1 = script was completed (all conditions run)
/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
/maxlevel:						maximumm number of levels tested (default: 7)
/finallevel:					highest successful (at least one correct attempt) 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 parameters.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


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