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Expression'expressions.target.currentitemnumber' is invalid. Expression contains anunknown element or property name.

To get an impression of how my skript looks like I copied it. It looks like this:




<item attributeAlabel>
/1 = "Unleasant"
</item>

<item attributeBlabel>
/1 = "Pleasant"
</item>

<item attributeClabel>
/1 = "Unpleasant"
</item>

<item attributeDlabel>
/1 = "Pleasant"
</item>

<item primeAlabel>
/1 = "Pflegeroboter"
</item>

<item primeBlabel>
/1 = "sensorgesteuerte Heizungen"
</item>

<item primeClabel>
/1 = "Smart-Häuser"
</item>

<item primeDlabel>
/1 = "Sterbehilfe"
</item>

<item primeA>
/1 = "Pflegeroboter"
</item>

<item primeB>
/1 = "sensorgesteuerte Heizungen"
</item>

<item primeC>
/1 = "Smart-Häuser"
</item>

<item primeD>
/1 = "Sterbehilfe"
</item>

<picture primeNeutral>
/ items = ("neutral.jpg")
/ size = (20%, 20%)
</picture>

***********************************************************************
Symbol and neutral stimuli
**************************************************************

<item symbols>
/1 = "pic1.jpg"
/2 = "pic2.jpg"
/3 = "pic3.jpg"
/4 = "pic4.jpg"
/5 = "pic5.jpg"
/6 = "pic6.jpg"
/7 = "pic7.jpg"
/8 = "pic8.jpg"
/9 = "pic9.jpg"
/10 = "pic10.jpg"
/11 = "pic11.jpg"
/12 = "pic12.jpg"
/13 = "pic13.jpg"
/14 = "pic14.jpg"
/15 = "pic15.jpg"
/16 = "pic16.jpg"
/17 = "pic17.jpg"
/18 = "pic18.jpg"
/19 = "pic19.jpg"
/20 = "pic20.jpg"
/21 = "pic21.jpg"
/22 = "pic22.jpg"
/23 = "pic23.jpg"
/24 = "pic24.jpg"
/25 = "pic25.jpg"
/26 = "pic26.jpg"
/27 = "pic27.jpg"
/28 = "pic28.jpg"
/29 = "pic29.jpg"
/30 = "pic30.jpg"
/31 = "pic31.jpg"
/32 = "pic32.jpg"
/33 = "pic33.jpg"
/34 = "pic34.jpg"
/35 = "pic35.jpg"
/36 = "pic36.jpg"
/37 = "pic37.jpg"
/38 = "pic38.jpg"
/39 = "pic39.jpg"
/40 = "pic40.jpg"
/41 = "pic41.jpg"
/42 = "pic42.jpg"
/43 = "pic43.jpg"
/44 = "pic44.jpg"
/45 = "pic45.jpg"
/46 = "pic46.jpg"
/47 = "pic47.jpg"
/48 = "pic48.jpg"
/49 = "pic49.jpg"
/50 = "pic50.jpg"
/51 = "pic51.jpg"
/52 = "pic52.jpg"
/53 = "pic53.jpg"
/54 = "pic54.jpg"
/55 = "pic55.jpg"
/56 = "pic56.jpg"
/57 = "pic57.jpg"
/58 = "pic58.jpg"
/59 = "pic59.jpg"
/60 = "pic60.jpg"
/61 = "pic61.jpg"
/62 = "pic62.jpg"
/63 = "pic63.jpg"
/64 = "pic64.jpg"
/65 = "pic65.jpg"
/66 = "pic66.jpg"
/67 = "pic67.jpg"
/68 = "pic68.jpg"
/69 = "pic69.jpg"
/70 = "pic70.jpg"
/71 = "pic71.jpg"
/72 = "pic72.jpg"
/73 = "pic73.jpg"
/74 = "pic74.jpg"
/75 = "pic75.jpg"
/76 = "pic76.jpg"
/77 = "pic77.jpg"
/78 = "pic78.jpg"
/79 = "pic79.jpg"
/80 = "pic80.jpg"
/81 = "pic81.jpg"
/82 = "pic82.jpg"
/83 = "pic83.jpg"
/84 = "pic84.jpg"
/85 = "pic85.jpg"
/86 = "pic86.jpg"
/87 = "pic87.jpg"
/88 = "pic88.jpg"
/89 = "pic89.jpg"
/90 = "pic90.jpg"
/91 = "pic91.jpg"
/92 = "pic92.jpg"
/93 = "pic93.jpg"
/94 = "pic94.jpg"
/95 = "pic95.jpg"
/96 = "pic96.jpg"
/97 = "pic97.jpg"
/98 = "pic98.jpg"
/99 = "pic99.jpg"
/100 = "pic100.jpg"
/101 = "pic101.jpg"
/102 = "pic102.jpg"
/103 = "pic103.jpg"
/104 = "pic104.jpg"
/105 = "pic105.jpg"
/106 = "pic106.jpg"
/107 = "pic107.jpg"
/108 = "pic108.jpg"
/109 = "pic109.jpg"
/110 = "pic110.jpg"
/111 = "pic111.jpg"
/112 = "pic112.jpg"
/113 = "pic113.jpg"
/114 = "pic114.jpg"
/115 = "pic115.jpg"
/116 = "pic116.jpg"
/117 = "pic117.jpg"
/118 = "pic118.jpg"
/119 = "pic119.jpg"
/120 = "pic120.jpg"
/121 = "pic121.jpg"
/122 = "pic122.jpg"
/123 = "pic123.jpg"
/124 = "pic124.jpg"
/125 = "pic125.jpg"
/126 = "pic126.jpg"
/127 = "pic127.jpg"
/128 = "pic128.jpg"
/129 = "pic129.jpg"
/130 = "pic130.jpg"
/131 = "pic131.jpg"
/132 = "pic132.jpg"
/133 = "pic133.jpg"
/134 = "pic134.jpg"
/135 = "pic135.jpg"
/136 = "pic136.jpg"
/137 = "pic137.jpg"
/138 = "pic138.jpg"
/139 = "pic139.jpg"
/140 = "pic140.jpg"
/141 = "pic141.jpg"
/142 = "pic142.jpg"
/143 = "pic143.jpg"
/144 = "pic144.jpg"
/145 = "pic145.jpg"
/146 = "pic146.jpg"
/147 = "pic147.jpg"
/148 = "pic148.jpg"
/149 = "pic149.jpg"
/150 = "pic150.jpg"
/151 = "pic151.jpg"
/152 = "pic152.jpg"
/153 = "pic153.jpg"
/154 = "pic154.jpg"
/155 = "pic155.jpg"
/156 = "pic156.jpg"
/157 = "pic157.jpg"
/158 = "pic158.jpg"
/159 = "pic159.jpg"
/160 = "pic160.jpg"
/161 = "pic161.jpg"
/162 = "pic162.jpg"
/163 = "pic163.jpg"
/164 = "pic164.jpg"
/165 = "pic165.jpg"
/166 = "pic166.jpg"
/167 = "pic167.jpg"
/168 = "pic168.jpg"
/169 = "pic169.jpg"
/170 = "pic170.jpg"
/171 = "pic171.jpg"
/172 = "pic172.jpg"
/173 = "pic173.jpg"
/174 = "pic174.jpg"
/175 = "pic175.jpg"
/176 = "pic176.jpg"
/177 = "pic177.jpg"
/178 = "pic178.jpg"
/179 = "pic179.jpg"
/180 = "pic180.jpg"
/181 = "pic181.jpg"
/182 = "pic182.jpg"
/183 = "pic183.jpg"
/184 = "pic184.jpg"
/185 = "pic185.jpg"
/186 = "pic186.jpg"
/187 = "pic187.jpg"
/188 = "pic188.jpg"
/189 = "pic189.jpg"
/190 = "pic190.jpg"
/191 = "pic191.jpg"
/192 = "pic192.jpg"
/193 = "pic193.jpg"
/194 = "pic194.jpg"
/195 = "pic195.jpg"
/196 = "pic196.jpg"
/197 = "pic197.jpg"
/198 = "pic198.jpg"
/199 = "pic199.jpg"
/200 = "pic200.jpg"
</item>



**************************************************************************************************************
**************************************************************************************************************
    EDITABLE INSTRUCTIONS: change instructions here
**************************************************************************************************************
**************************************************************

<item instructions>
/ 1 = "This study examines how people make simple judgments.~n~nYou will see pairs of items flashed one after the other. The first is a real life item. The second is a Chinese character. The real-life image simply serves as a warning signal for the Chinese character and should otherwise be ignored. Your job is to judge the visual pleasantness of the Chinese characters."
/ 2 = "If the Chinese character is less visually pleasing than average, press the left (E) <%expressions.buttoninstruct1%>. If the Chinese character is more visually pleasing than average, press the right (I) <%expressions.buttoninstruct1%>.

It is important to note that the real-life item can sometimes bias people’s judgments of the drawings. Because we are interested in how people can avoid being biased, please try your absolute best not to let the real-life items bias your judgment of the drawings! Give us an honest assessment of the drawings, regardless of the images that precede them."
/ 3 = "To get a feel for the task, we will begin with 10 practice trials. Again, your task is to judge whether the Chinese characters are less visually pleasing or more visual pleasing than average by pressing either the 'E' or 'I' <%expressions.buttoninstruct1%>."
/ 4 = "Practice is now complete and the task will now begin. As a reminder, if the Chinese character is less visually pleasing than average, press the left 'E' <%expressions.buttoninstruct1%>. If it is more visual pleasing than average, press the right 'I' <%expressions.buttoninstruct1%>."
</item>


<text summary>
/ items = ("You judged <% (trial.primeA.percentcorrect) %> % of the Chinese characters to be <% item.attributeAlabel.item.1 %> when they were preceded by a <% item.primeAlabel.item.1 %> picture.

You judged <% (100 - trial.primeB.percentcorrect) %> % of the Chinese characters to be <% item.attributeAlabel.item.1 %> when they were preceded by a <% item.primeBlabel.item.1 %> picture.")
/ size = (60%, 60%)
/ hjustify = left
 </text>

 
 ****************************************************************************************************
general instruction expressions: adjust the instruction text depending on device used to run script
****************************************************************************************************

<expressions>
/buttoninstruct1 = if (computer.touch) {"button";} else {"key";}
/buttoninstruct2 = if (computer.touch) {"Place your index fingers over the left and right response buttons";} else {"Place your index finger on the E and I keys";}
</expressions>

*******************************
General Helper Instructions
******************************

<text getReady>
/items = ("Get Ready:
~n<%expressions.buttoninstruct2%>")
/ fontstyle = ("Arial", 3.00%, false, false, false, false, 5, 1)
/ size = (80%, 40%)
</text>

***********************************************************
these instructions will be run if the script is
run on a touchscreen
***********************************************************

<text touchscreenInstruct1>
/ items = ("General Note on Touchscreen Usage
 for this Task:")
/ fontstyle = ("Arial", 5%, true, false, false, false, 5, 1)
/ position = (50%, 20%)
/ size = (80%, 20%)
/ vjustify = center
</text>

<text touchscreenInstruct2>
/ items = ("All necessary response buttons/keys will be provided at the bottom of your screen.

For example, here you see the <SPACEBAR>.
Tap it to continue to read instructions.")
/ fontstyle = ("Arial", 3%, true, false, false, false, 5, 1)
/ position = (50%, 50%)
/ size = (70%, 30%)
/ vjustify = center
</text>

**************************************************************************************************************
                                !!!REMAINING CODE: Customize after careful consideration only!!!
**************************************************************************************************************


**************************************************************************************************************
**************************************************************************************************************
    DEFAULTS
**************************************************************************************************************
**************************************************************************************************************
script requires Inquisit 5.0.0.0 or higher


<defaults>
/canvasaspectratio = (4,3)
/minimumversion = "5.0.0.0"
/ fontstyle = ("Arial", 3.5%, false, false, false, false, 5, 1)
/ screencolor = black
/ txbgcolor = black
/ txcolor = white
</defaults>

**************************************************************************************************************
**************************************************************************************************************
    DATA
**************************************************************************************************************
**************************************************************************************************************

******************
Raw Data Files
******************

<data>
/columns = (build, computer.platform, date, time, subject, blockcode, blocknum, trialcode, trialnum, values.primestim, values.targetstim,
                response, correct, latency,
                trial.primeA.totalpercentcorrect, trial.primeB.totalpercentcorrect, trial.primeNeutral.totalpercentcorrect)
/separatefiles = true
</data>

*******************
Summary Data File
*******************

<summarydata>
/columns = (script.filename, script.startdate, script.starttime, script.subjectid, script.elapsedtime, computer.platform, values.completed,
trial.primeA.totalpercentcorrect, trial.primeB.totalpercentcorrect, trial.primeNeutral.totalpercentcorrect)
/ separatefiles = true
</summarydata>

**************************************************************************************************************
**************************************************************************************************************
    VALUES: automatically updated
**************************************************************************************************************
**************************************************************************************************************

completed:                                    0 = script was not completed; 1 = script was completed (all conditions run)
/targetstim:                                stores the itemnumber of the current target stimulus
/primestim:                                    stores the itemnumber of the current prime stimulus

<values>
/completed = 0
/targetstim = 0
/primestim = 0
</values>

**************************************************************************************************************
**************************************************************************************************************
    EXPRESSIONS
**************************************************************************************************************
**************************************************************************************************************
expressions>
/ a = trial.primeA.percentcorrect
/ b = trial.primeB.percentcorrect
</expressions>

**************************************************************************************************************
**************************************************************************************************************
    INSTRUCTIONS
**************************************************************************************************************
**************************************************************************************************************

list instructions>
/ items = (1, 2, 3, 4, 5, 6, 7)
/ resetinterval = 20
/ selectionmode = sequence
</list>

<text instructions>
/ items = instructions
/ hjustify = left
/ size = (90%, 60%)
/ position = (50%, 85%)
/ valign = bottom
/ select = sequence
</text>

<text spacebar>
/ items = ("Press the SPACE BAR to begin.")
/ position = (50%, 95%)
/ valign = bottom
</text>

<trial instructions>
/ stimulustimes = [1=instructions, spacebar]
/ correctresponse = (" ")
/ errormessage = false
/ recorddata = false
</trial>

*****************************
General Helper Trial
*****************************

This trial is used when participants are asked to place their fingers on specific response
buttons. On the touchscreen, this trial presents the (inactive) response buttons to the participants.
<trial getReady>
/ stimulusframes = [1 = getReady]
/ trialduration = 5000
/ validresponse = (18, 23)
/ beginresponsetime = 5000
/ errormessage = false
/ recorddata = false
</trial>

<trial touchscreenInstruct>
/ skip = [
    !computer.touch
]
/ stimulusframes = [1 = touchscreenInstruct1, touchscreenInstruct2]
/ validresponse = (57)
/ recorddata = false
</trial>

**************************************************************************************************************
**************************************************************************************************************
    PERFORMANCE SUMMARY
**************************************************************************************************************
**************************************************************************************************************
<trial summary>
/ stimulustimes = [0=summary]
/ validresponse = (" ")
/ recorddata = false
</trial>

**************************************************************************************************************
**************************************************************************************************************
    STIMULI
**************************************************************************************************************
**************************************************************************************************************
<text target>
/ items = text
/ select = noreplace
/ size = (20%, 20%)
</text>


<text primeB>
/ items = primeB
/ size = (20%, 20%)
</text>

<text primeA>
/ items = primeA
/ size = (20%, 20%)
</text>

<text primeD>
/ items = primeD
/ size = (20%, 20%)
</text>

<text primeC>
/ items = primeC
/ size = (20%, 20%)
</text>

<text attributeAlabel>
/ items = attributeAlabel
/ valign = top
/ halign = right
/ position = (95%, 5%)
/ txcolor = green
/ fontstyle = ("Arial", 5%)
</text>

<text attributeBlabel>
/ items = attributeBlabel
/ valign = top
/ halign = left
/ position = (5%, 5%)
/ txcolor = green
/ fontstyle = ("Arial", 5%)
</text>

<text attributeClabel>
/ items = attributeClabel
/ valign = top
/ halign = left
/ position = (5%, 5%)
/ txcolor = green
/ fontstyle = ("Arial", 5%)
</text>

<text attributeDlabel>
/ items = attributeDlabel
/ valign = top
/ halign = left
/ position = (5%, 5%)
/ txcolor = green
/ fontstyle = ("Arial", 5%)
</text>

<text error>
/ position = (50%, 75%)
/ items = ("X")
/ color = red
/ fontstyle = ("Arial", 10%, true)
</text>

<picture mask>
/ items = ("mask.jpg")
/ size = (23%, 23%)
</picture>

<shape blank>
/ shape = rectangle
/ color = black
/ size = (20%, 20%)
</shape>


**************************************************************************************************************
**************************************************************************************************************
    TRIALS    
**************************************************************************************************************
**************************************************************************************************************
<trial primeApractice>
/ validresponse = ("E", "I")
/ correctresponse = ("I")
/ stimulustimes = [0=primeA; 75=blank; 200=target; 300=mask]
/ beginresponsetime = (200)
</trial>


<trial primeBpractice>
/ validresponse = ("E", "I")
/ correctresponse = ("E")
/ stimulustimes = [0=primeB; 75=blank; 200=target; 300=mask]
/ beginresponsetime = (200)
</trial>

<trial primeCpractice>
/ validresponse = ("E", "I")
/ correctresponse = ("E")
/ stimulustimes = [0=primeC; 75=blank; 200=target; 300=mask]
/ beginresponsetime = (200)
</trial>

<trial primeDpractice>
/ validresponse = ("E", "I")
/ correctresponse = ("E")
/ stimulustimes = [0=primeD; 75=blank; 200=target; 300=mask]
/ beginresponsetime = (200)
</trial>

<trial primeNeutralpractice>
/ validresponse = ("E", "I")
/ correctresponse = ("E", "I")
/ stimulustimes = [0=primeNeutral; 75=blank; 200=target; 300=mask]
/ beginresponsetime = (200)
</trial>

<trial primeA>
/ validresponse = ("E", "I")
/ correctresponse = ("I")
/ stimulustimes = [0=pleasant; 75=blank; 200=target; 300=mask]
/ontrialend = [values.primestim = text.primea.currentitemnumber; values.targetstim = expressions.target.currentitemnumber]
/ beginresponsetime = (200)
</trial>


<trial primeB>
/ validresponse = ("E", "I")
/ correctresponse = ("E")
/ stimulustimes = [0=primeB; 75=blank; 200=target; 300=mask]
/ontrialend = [values.primestim = text.primeb.currentitemnumber; values.targetstim = picture.target.currentitemnumber]
/ beginresponsetime = (200)
</trial>

<trial primeC>
/ validresponse = ("E", "I")
/ correctresponse = ("E")
/ stimulustimes = [0=primeB; 75=blank; 200=target; 300=mask]
/ontrialend = [values.primestim = text.primeb.currentitemnumber; values.targetstim = picture.target.currentitemnumber]
/ beginresponsetime = (200)
</trial>

<trial primeD>
/ validresponse = ("E", "I")
/ correctresponse = ("E")
/ stimulustimes = [0=primeB; 75=blank; 200=target; 300=mask]
/ontrialend = [values.primestim = text.primeb.currentitemnumber; values.targetstim = picture.target.currentitemnumber]
/ beginresponsetime = (200)
</trial>


<trial primeNeutral>
/ validresponse = ("E", "I")
/ correctresponse = ("E", "I")
/ stimulustimes = [0=primeNeutral; 75=blank; 200=target; 300=mask]
/ontrialend = [values.primestim = picture.primeneutral.currentitemnumber; values.targetstim = picture.target.currentitemnumber]
/ beginresponsetime = (200)
</trial>

**************************************************************************************************************
**************************************************************************************************************
    BLOCKS
**************************************************************************************************************
**************************************************************************************************************
<block touchscreenInfo>
/ trials = [1 = touchscreenInstruct]
</block>


<block practice>
/ bgstim = (attributeAlabel, attributeBlabel)
/ trials = [1-3 = instructions; 4 = getReady; 5-14 = noreplace(primeApractice, primeBpractice, primeNeutralpractice)]
/ recorddata = true
</block>


<block test>
/ bgstim = (attributeAlabel, attributeBlabel)
/ trials = [1 = instructions; 2 = getReady; 3-50 = noreplace(primeA, primeB, primeNeutral)]
</block>


<block summary>
/ trials = [1=summary]
/ recorddata = false
</block>

**************************************************************************************************************
**************************************************************************************************************
    EXPERIMENT
**************************************************************************************************************
**************************************************************************************************************
<expt>
/ blocks = [
    1 = touchscreenInfo;
    2=practice;
    3=test;
    4=summary;
]
/onexptend = [values.completed = 1]
</expt>

***********************************************************************
Test Monkey
***********************************************************************
<monkey>
/ latencydistribution = normal(500, 100)
/ percentcorrect = 90
</monkey>


**************************************************************************************************************
                                                End of File
**************************************************************************************************************