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Group: Administrators
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> While I see where I can change the length of time the mask is presented, it seems I can't vary that time between levels?
No, you can vary that time as needed. Set up <block> elements, each block representing one of your "levels". At the beginning of the given block, set values.digitpresentationtime, values.maskpresentationtime, etc. to the desired values applicable to that level:
<block level1>
/ onblockbegin = [values.digitpresentationtime = [insert value for level 1 here]; values.maskpresentationtime = ...; ]
/ trials = [1-??= SART]
...
</block>
...
<block level4>
/ onblockbegin = [values.digitpresentationtime = [insert value for level 4 here]; values.maskpresentationtime = ...; ]
/ trials = [1-??= SART]
...
</block>
Also set up <likert> elements for your subjective difficulty assessment and run them via a <block>
<block difficulty>
/ trials = [1=likert1; ...]
...
</block>
Finally, run all those blocks via the <expt> element in the desired order:
<expt>
...
/ blocks = [1 = practice; 2 = sequence(level1,difficulty,level2,difficulty,level3,difficulty,level4,difficulty); 3=summary]
...
<expt>
Please make sure you also work through the comments included in the script. They'll give you an idea what each part of the code does and how to adapt it to your needs without breaking anything in the process.
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