Millisecond Forums

Hello everyone,
I am computing a learning task in which participants have to recall target words that were previously paired with cue words. As the later tasks depend on the learning task, I want to make sure that participants recalled at least 50% "correct" before continuing the study. This all happens online, so I need to automatize this process. The /iscorrectresponse element works fine, but I think it is too restrictive given the time pressured responses. --> i want to allow for spelling mistakes. Thus, I essentially would like to combine multiple string functions (e.g., correct length +- 1 letter, contains the start, and/or contains the end letters).

However, I am struggling with the correct coding of the expressions attributes. I have tried to put this in any imaginable format but the output just doesn't fit what I want it to look like. So, the rows marked in bold are what I currently came up with, but they don't work properly.

<item real_response_word>
/1 = "HOUR"
/2 = "NECKLACE"
/3 = "COTTON"
/4 = "BOURBON"
/5 = "CIGAR"
</item>

<item real_cue_word>
/1 = "ERRAND"
/2 = "CLUSTER"
/3 = "SNAG"
/4 = "RELIEF"
/5 = "VICE"
</item>

<item shorter_response_word>
/1 = "HOU"
/2 = "NECK"
/3 = "COT"
/4 = "BOUR"
/5 = "CIG"
</item>

<text shorter_response_word>
/ items = shorter_response_word
/ fontstyle = ("Arial", 8%)
/ position = (50%, 50%)
/ color = blue
/ select = text.cue_word_testfeedback.currentitemnumber
</text>


<text type_response_word>
/items = ("Type in the RESPONSE word")
/position = (50%, 70%)
/ fontstyle = ("Arial", 5%)
</text>

<text focuspoint>
/items = ("+")
/position = (50%, 50%)
/ fontstyle = ("Arial", 8%)
</text>


<text cue_word_testfeedback>
/ items = real_cue_word
/ fontstyle = ("Arial", 8%)
/ position = (50%, 50%)
/ select = noreplacenorepeat
</text>

<text response_word_testfeedback>
/ items = real_response_word
/ fontstyle = ("Arial", 8%)
/ position = (50%, 50%)
/ color = blue
/ select = text.cue_word_testfeedback.currentitemnumber
</text>

<openended testfeedback_phase>
/ stimulustimes = [0= text.focuspoint; 200=cue_word_testfeedback; 200=text.type_response_word]
/ response = correct
/ iscorrectresponse = [
  toupper(openended.testfeedback_phase.response) == item.real_response_word.item(text.cue_word_testfeedback.currentindex);
]

/ position = (50,90)
/ recorddata = true
/ timeout = 5400
/ ontrialend = [values.trial_number = values.trial_number+1]
/ ontrialend = [if(openended.testfeedback_phase.correct) values.trial_correct = values.trial_correct+1]

/ ontrialend = [if (0 <= expressions.length_personal_response - expressions.length_correct_response <2 || 0 <= expressions.length_correct_response - expressions.length_personal_response <2 ) values.correct_length = values.correct_length+1]
</openended>

<expressions>
/length_personal_response = length(openended.testfeedback_phase.response)
/length_correct_response = length(item.real_response_word.item(text.cue_word_testfeedback.currentindex))
</expressions>

<values>
/trial_correct = 0
/trial_number = 0
/correct_length = 0
</values>

<summarydata>
/ columns = (values.trial_correct, values.trial_number, values.correct_length)
</summarydata>

feedback
<trial testfeedback_phase_feedback_cycle1>
/stimulustimes = [200=response_word_testfeedback]
/timeout = 2200
/ posttrialpause = 300
</trial>

<block testfeedback_phase>
/ trials = [1-5= sequence(openended.testfeedback_phase, trial.testfeedback_phase_feedback_cycle1)]
</block>

<expt 01testfeedback>
/ blocks = [1=block.testfeedback_phase]
/ stop = [if (values.trial_number == 4 && values.trial_correct<=2)]
</expt>

Thank you all for your help :)

Kind regards,

Clusi