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alexa
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Group: Forum Members
Posts: 27,
Visits: 78
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Hello, I have a question concerning the AAT. Imodified this script (Katja Borchert, APPROACH-AVOIDANCE-TASK (AAT), lastupdated: 09-04-2014) because I would like to compare approach- andavoidance-tendencies towards high and low caloric food. I listed themodifications at the end of the script. I don’tknow if it’s possible to modify the AAT the way I would like: Instead of using4 categories (alcohol, non-alcohol, good pictures, bad pictures; 10 pictureseach; 2 times presented --> 80 stimuli), I would like to have 2 categoriesbut the same amount of trials (high vs. lowcaloric foods; 20 pictures each; 2times presented --> 80stimuli). After I have done my modifications, the raw data consisted of only 50(10 practice, 40 experimental) trials so I suppose I must have made a mistake. I put thescript (and the sequence generator) in the attachment. What do I have to change that it works the way I want?
Thank youvery much, Alexa
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Dave
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Group: Administrators
Posts: 12K,
Visits: 98K
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+xHello, I have a question concerning the AAT. Imodified this script (Katja Borchert, APPROACH-AVOIDANCE-TASK (AAT), lastupdated: 09-04-2014) because I would like to compare approach- andavoidance-tendencies towards high and low caloric food. I listed themodifications at the end of the script. I don’tknow if it’s possible to modify the AAT the way I would like: Instead of using4 categories (alcohol, non-alcohol, good pictures, bad pictures; 10 pictureseach; 2 times presented --> 80 stimuli), I would like to have 2 categoriesbut the same amount of trials (high vs. lowcaloric foods; 20 pictures each; 2times presented --> 80stimuli). After I have done my modifications, the raw data consisted of only 50(10 practice, 40 experimental) trials so I suppose I must have made a mistake. I put thescript (and the sequence generator) in the attachment. What do I have to change that it works the way I want?
Thank youvery much, Alexa If you want to use the sequence generator, you also need to adjust the category counts in the <values> element inside AAT_SequenceGenerator.iqx: If I understood your description and the changes you made in the "main" AAT script (AAT_test.iqx) correctly, you'll want to set a value of 20 for /count1 to /count4 in the sequence generation script.
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alexa
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Group: Forum Members
Posts: 27,
Visits: 78
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+x+xHello, I have a question concerning the AAT. Imodified this script (Katja Borchert, APPROACH-AVOIDANCE-TASK (AAT), lastupdated: 09-04-2014) because I would like to compare approach- andavoidance-tendencies towards high and low caloric food. I listed themodifications at the end of the script. I don’tknow if it’s possible to modify the AAT the way I would like: Instead of using4 categories (alcohol, non-alcohol, good pictures, bad pictures; 10 pictureseach; 2 times presented --> 80 stimuli), I would like to have 2 categoriesbut the same amount of trials (high vs. lowcaloric foods; 20 pictures each; 2times presented --> 80stimuli). After I have done my modifications, the raw data consisted of only 50(10 practice, 40 experimental) trials so I suppose I must have made a mistake. I put thescript (and the sequence generator) in the attachment. What do I have to change that it works the way I want?
Thank youvery much, Alexa If you want to use the sequence generator, you also need to adjust the category counts in the <values> element inside AAT_SequenceGenerator.iqx: If I understood your description and the changes you made in the "main" AAT script (AAT_test.iqx) correctly, you'll want to set a value of 20 for /count1 to /count4 in the sequence generation script. Okay, thanks for your hint! I now changed the sequence-generator script (I put it in the attachment and listed the changes in the script), but there must be an error: "expression 'values.totaltrialcount' is invalid. Do I have to change further parameters? Thanks a lot for your help, Dave! Alexa
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Dave
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Group: Administrators
Posts: 12K,
Visits: 98K
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+x+x+xHello, I have a question concerning the AAT. Imodified this script (Katja Borchert, APPROACH-AVOIDANCE-TASK (AAT), lastupdated: 09-04-2014) because I would like to compare approach- andavoidance-tendencies towards high and low caloric food. I listed themodifications at the end of the script. I don’tknow if it’s possible to modify the AAT the way I would like: Instead of using4 categories (alcohol, non-alcohol, good pictures, bad pictures; 10 pictureseach; 2 times presented --> 80 stimuli), I would like to have 2 categoriesbut the same amount of trials (high vs. lowcaloric foods; 20 pictures each; 2times presented --> 80stimuli). After I have done my modifications, the raw data consisted of only 50(10 practice, 40 experimental) trials so I suppose I must have made a mistake. I put thescript (and the sequence generator) in the attachment. What do I have to change that it works the way I want?
Thank youvery much, Alexa If you want to use the sequence generator, you also need to adjust the category counts in the <values> element inside AAT_SequenceGenerator.iqx: If I understood your description and the changes you made in the "main" AAT script (AAT_test.iqx) correctly, you'll want to set a value of 20 for /count1 to /count4 in the sequence generation script. Okay, thanks for your hint! I now changed the sequence-generator script (I put it in the attachment and listed the changes in the script), but there must be an error: "expression 'values.totaltrialcount' is invalid. Do I have to change further parameters? Thanks a lot for your help, Dave! Alexa #1: The sequence generator script will not run in isolation. It is integrated in the "main" AAT_test.iqx script via an <include>. values.totaltrialcount resides in AAT_test.iqx. i.e., This error will go away when you run the AAT_test.script. #2: There is an additional minor change you need to make to the sequence generator script: Remove the invalid categories (5 to 8) from <list stimcats>. You only want categories 1 to 4. See the attached script. I've added a simple <trial> to <block SequenceGenerator> that will display the generated sequence and its length on-screen. This gives you an easy way to verify that things work as they should. Simply remove the trial from the block once you are done with testing.
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alexa
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Group: Forum Members
Posts: 27,
Visits: 78
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+x+x+x+xHello, I have a question concerning the AAT. Imodified this script (Katja Borchert, APPROACH-AVOIDANCE-TASK (AAT), lastupdated: 09-04-2014) because I would like to compare approach- andavoidance-tendencies towards high and low caloric food. I listed themodifications at the end of the script. I don’tknow if it’s possible to modify the AAT the way I would like: Instead of using4 categories (alcohol, non-alcohol, good pictures, bad pictures; 10 pictureseach; 2 times presented --> 80 stimuli), I would like to have 2 categoriesbut the same amount of trials (high vs. lowcaloric foods; 20 pictures each; 2times presented --> 80stimuli). After I have done my modifications, the raw data consisted of only 50(10 practice, 40 experimental) trials so I suppose I must have made a mistake. I put thescript (and the sequence generator) in the attachment. What do I have to change that it works the way I want?
Thank youvery much, Alexa If you want to use the sequence generator, you also need to adjust the category counts in the <values> element inside AAT_SequenceGenerator.iqx: If I understood your description and the changes you made in the "main" AAT script (AAT_test.iqx) correctly, you'll want to set a value of 20 for /count1 to /count4 in the sequence generation script. Okay, thanks for your hint! I now changed the sequence-generator script (I put it in the attachment and listed the changes in the script), but there must be an error: "expression 'values.totaltrialcount' is invalid. Do I have to change further parameters? Thanks a lot for your help, Dave! Alexa #1: The sequence generator script will not run in isolation. It is integrated in the "main" AAT_test.iqx script via an <include>. values.totaltrialcount resides in AAT_test.iqx. i.e., This error will go away when you run the AAT_test.script. #2: There is an additional minor change you need to make to the sequence generator script: Remove the invalid categories (5 to 8) from <list stimcats>. You only want categories 1 to 4. See the attached script. I've added a simple <trial> to <block SequenceGenerator> that will display the generated sequence and its length on-screen. This gives you an easy way to verify that things work as they should. Simply remove the trial from the block once you are done with testing. Thanks a lot for your helpful advices, Dave! This works exactly the way it should!
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