Counterbalancing in JATOS

redredder

I'm a graduate student completing my thesis project involving measuring implicit bias. I'm using a Go-No-Go constructed in OpenSesame, OSweb, then uploaded to JATOS. I am using counterbalancing, as I technically have 3 GNATs in one (positive VS negative, harmless VS dangerous, and competent VS helpless) and have 12 different sequence files. I have figured out how to upload each individual components into JATOS, but I am struggling to get the randomization to work. I have referred to the example studies, but I'm having trouble figuring out exactly what was done. I'm not sure exactly path to add to sort conditions. I am the first in my university department to attempt this using a JATOS server, so I've been on my own in figuring everything out.

Any help is greatly appreciated!

elisa

Hi,

I'm not sure exactly path to add to sort conditions.

Can you list the contents of the folder 2bc3cd3c...? (Unzip the folder if you haven't yet)

I can then tell you which path to write for each component

Best

Elisa

redredder

Here is what the file shows.

elisa

Ok, it looks like you didn't include all the necessary .html scripts. Let me try to explain:

• Each JATOS study is associated with a single folder. (In your case, 2bc3cd3c...).
• Each component within a study is associated with a single .html file. OSWeb creates by default a single index.html file and runs a study using a single component. But now you've extended your study to have 12+1 components, so you should have 12+1 .html files.

What you need to do then:

• unzip each of the 12 OSWeb experiments (with different sequences) that you've presumably created in OSWeb and combine all those index.html files within a single folder. You'll need to rename them so that they don't replace each other.
• You don't need to have 12 copies of the /js, /css and /img because (I assume) they will be the same. If they're different, you'll have to care for that, too.
• You'll also need to include the sortConditions.html file within the same folder, that you can get from unzipping the example study you downloaded.
• With all the necessary html files in a single folder, it should be straightforward to know which path to assign to each of your 12+1 components

Best

Elisa

redredder

I am now receiving a "cannot read JSON string" error

elisa

Then your JSON string is wrong.

Without more information, that's all I can say.