Question about coding IAT

atefeh
New Member

Posts: 16

Question about coding IAT Jul 31, 2019 15:33:13 GMT

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Post by atefeh on Jul 31, 2019 15:33:13 GMT

hi again.
I am scripting my own IAT. I need respondents to correct their error response by pressing the right key after seeing an error message. Using "repeat_on_error" makes respondents see the stimulus again and again until they press the right key which is not what I need. I do not want to repeat the same stimulus to get the right response, rather I want the respondents to be able to press the other key to continue whenever they see the error message. Is there any way to script this procedure?
Thanks a million in advance.

PsyToolkit
Administrator

Posts: 545

Question about coding IAT Aug 1, 2019 19:18:36 GMT

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Post by PsyToolkit on Aug 1, 2019 19:18:36 GMT

This is a bit complicated but it can be done. It requires some extra coding. For this, you need to work a bit on your PsyToolkit coding skills as well. I can give you a hint on how I would solve it. I imagine, currently (for just one response), you would have some line like this, where you get the correct response from the first column of your task table and you wait up to 5 seconds (5000 ms):

readkey @1 5000

Now let us ad a bit of code to check for the correct response, it is fairly simple.

readkey @1 5000
while STATUS != CORRECT
readkey @1 5000
while-end
save RT STATUS

Now, the above lines do it, but this way, you do know the last RT only. You can write some extra code using a time stamp to get the full RT and so on.

atefeh
New Member

Posts: 16

Question about coding IAT Aug 2, 2019 12:01:08 GMT PsyToolkit likes this

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Post by atefeh on Aug 2, 2019 12:01:08 GMT

Thank you very much Dr Stoet. To me, coding in Psytoolkit is really amazing. I enjoy working on codes to find the best way to get the desired results. will try my best to improve my skills so! Thanks again for your kind attention and help.