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	Lexical Decision Task

    This script implements a version of the lexical decision task described in 
    Lepore & Brown (2002), The Role of Awareness: Divergent Automatic Stereotype 
    Activation and Implicit Judgment Correction, Social Cognition, 20 (4), pp 321-351.

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	Script Version: 0.9
	Last Modified:	08-18-2009 
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	Copyright (c) 2009 by Millisecond Software, LLC.
	http://www.millisecond.com/

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    All stimuli and instruction text are defined in the top section immediately 
    below. To adapt this script, simply replace the filler stimuli below with your own 
    category, neutral, and nonwords. Instruction text can also be modified in this 
    section.
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<item category>
/ 1 = "category1"
/ 2 = "category2"
/ 3 = "category3"
/ 4 = "category4"
/ 5 = "category5"
/ 6 = "category6"
/ 7 = "category7"
/ 8 = "category8"
/ 9 = "category9"
/ 10 = "category10"
/ 11 = "category11"
/ 12 = "category12"
/ 13 = "category13"
</item>

<item neutral>
/ 1 = "neutral1"
/ 2 = "neutral2"
/ 3 = "neutral3"
/ 4 = "neutral4"
/ 5 = "neutral5"
/ 6 = "neutral6"
/ 7 = "neutral7"
/ 8 = "neutral8"
/ 9 = "neutral9"
/ 10 = "neutral10"
/ 11 = "neutral11"
/ 12 = "neutral12"
/ 13 = "neutral13"
</item>

<item nonword>
/ 1 = "nonword1"
/ 2 = "nonword2"
/ 3 = "nonword3"
/ 4 = "nonword4"
/ 5 = "nonword5"
/ 6 = "nonword6"
/ 7 = "nonword7"
/ 8 = "nonword8"
/ 9 = "nonword9"
/ 10 = "nonword10"
/ 11 = "nonword11"
/ 12 = "nonword12"
/ 13 = "nonword13"
/ 14 = "nonword14"
/ 15 = "nonword15"
/ 16 = "nonword16"
/ 17 = "nonword17"
/ 18 = "nonword18"
/ 19 = "nonword19"
/ 20 = "nonword20"
/ 21 = "nonword21"
/ 22 = "nonword22"
/ 23 = "nonword23"
/ 24 = "nonword24"
/ 25 = "nonword25"
/ 26 = "nonword26"
</item>

<item neutralPractice>
/ 1 = "neutral1"
/ 2 = "neutral2"
/ 3 = "neutral3"
</item>

<item nonwordPractice>
/ 1 = "nonword1"
/ 2 = "nonword2"
/ 3 = "nonword3"
</item>

<item instructions>
/ 1 = "In the following task, a '*' will be presented at the center of the screen, and then a string of letters will briefly appear.  Your task is to decide whether or not the letters make up a valid English word.

If the letters are a valid word, press the 'I' key.

If the letters are NOT a word, press the 'E' key.

Try to classify the letter stimuli as words or nonwords as quickly and accurately as you can.

You will start with a few practice trials. Get ready for the task by placing your fingers on the 'E' and 'I' keys. 

When you are ready to begin, press the spacebar."
/2 = "Practice is now over, and the task will begin. As a reminder:

If the letters are a valid word, press the 'I' key.

If the letters are NOT a word, press the 'E' key.

Try to classify the letter stimuli as words or nonwords as quickly and accurately as you can.

When you are ready to begin, press the spacebar."
</item>

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<text category>
/ items = category
</text>

<text neutral>
/ items = neutral
</text>

<text nonword>
/ items = nonword
</text>

<text neutralPractice>
/ items = neutralPractice
</text>

<text nonwordPractice>
/ items = nonwordPractice
</text>

<text ready>
/ items = ("*")
</text>

<text instructions>
/ items = instructions
/ select = sequence
/ size = (75%, 75%)
/ txcolor = white
/ hjustify = left
/ resetinterval = 0
</text>

<shape blank>
/ shape = rectangle
/ color = black
/ size = (30%, 30%)
</shape>

<trial ldtcategory>
/ stimulustimes = [0=ready; 700=category; 950=blank]
/ validresponse = ("E", "I")
/ correctresponse = ("I")
</trial>

<trial ldtneutral>
/ stimulustimes = [0=ready; 700=neutral; 950=blank]
/ validresponse = ("E", "I")
/ correctresponse = ("I")
</trial>

<trial ldtnonword>
/ stimulustimes = [0=ready; 700=nonword; 950=blank]
/ validresponse = ("E", "I")
/ correctresponse = ("E")
</trial>

<trial ldtneutralPractice>
/ stimulustimes = [0=ready; 700=neutralPractice; 950=blank]
/ validresponse = ("E", "I")
/ correctresponse = ("I")
</trial>

<trial ldtnonwordPractice>
/ stimulustimes = [0=ready; 700=nonwordPractice; 950=blank]
/ validresponse = ("E", "I")
/ correctresponse = ("E")
</trial>

<trial instructions>
/ stimulustimes = [0=instructions]
/ validresponse = (" ")
/ recorddata = false
</trial>

<block lexicalDecisionTask>
/ trials = [1=instructions; 2-53=noreplace(ldtcategory, ldtneutral, ldtnonword, ldtnonword)]
</block>

<block lexicalDecisionTaskPractice>
/ trials = [1=instructions; 2-7=noreplace(ldtneutralPractice, ldtnonwordPractice)]
</block>

<expt lexicaldecisiontask>
/ blocks = [1=lexicalDecisionTaskPractice; 2=lexicalDecisionTask]
</expt>

<data>
/ columns = [date, time, subject, blocknum, blockcode, trialnum, trialcode, response, correct, latency, stimulusnumber, stimulusitem, stimulusnumber, stimulusitem]
</data>

<defaults>
/ fontstyle = ("Arial", 3.52%, false, false, false, false, 5, 0)
/ screencolor = black
/ txcolor = white
/ txbgcolor = black
</defaults>