Modification of the conventional IAT procedure


Modification of the conventional IAT procedure

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cdhyuem221
cdhyuem221
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Hi all,

We are going to modify the conventional IAT procedure.

The first modification would be if the participants fail to respond before a deadline, e.g., 800 ms, then the stimulus will be accompanied by a reminder (e.g., quickly) until the correct response was given.

The second is if participants make more than 15% errors in the incompatible practice block, the following incompatible test block deadline will be lengthened by 100 ms (a reminder appears). If the error level is between 10% and 15%, the deadline will be lengthened by 50 ms, and if the error level below 10%, the deadline was shortened by 50 ms.

Is it possible to implement in Inquisit. How to edit software scripts used for the general IAT procedure.

Thank you very much for help.

Euci

Dave
Dave
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Yes, this is perfectly possible. The modifications should be rather easy to do for you, provided that you (1) worked through the tutorials in the Inquisit documentation and (2) the original IAT template you are planning to modify.

What you'll need to do, in broad strokes, is
(- introduce additional values to track / compute the error percentage in the incompatible practice block,)
- introduce a value representing the "delay" for the reminder stimulus,
- compute the appropriate delay based on the error rate,
- insert that stimulus at the appropriate time in the trials via the  insertstimulustime() function.

See the attached file for details.

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IAT.iqx (514 views, 32.00 KB)
Edited
4 Years Ago by Dave
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