Ramdomize the blocks while selecting a specific selection for a block in real time

[Zh Wu]

Thank you so much for your great suggestions Katrin! Using an inline is so 
much useful, not only determining the block sequences but also changing the 
selections as wanted. Is there a function for the getattribute to be either 
odd or even, so that we don't need to write the inline for each subject 
number?

Zhaohong

On Sunday, August 17, 2014 2:53:01 AM UTC-4, Katrin wrote:
>
> Hey, well I guess what you could do is, referring in an inline before and 
> after the block to the attribute subjectnumber and depending on this let 
> eprime jump to the right block using a "goto" command and a label
>
> so assuming you would have two blocks only and subjects 1 would have to do 
> the first block first, subject 2 the second:
> you would need to put an inline object before the blocks saying something 
> like 
>
> if getattribute "subjectnumber" = 2 (I am not sure though anymore about 
> how the getattribute command is implemented precisely, look it up googling)
> goto label1 (which you should put before block 2) 
>
> and then after block 2: 
>
> if getattribute "subjectnumber" = 2 
> goto label2 (which you should put before block 1 after the first inline)
>
> and then after block 1:
>  
> if getattribute "subjectnumber" = 2 (I am not sure about how the 
> getattribute command is implemented anymore, look it up googling)
> goto label2 (which you should put before block 1 after the first inline)
>
> if getattribute "subjectnumber" = 2 (I am not sure about how the 
> getattribute command is implemented anymore, look it up googling)
> goto label3 (which you should put at the end of the experiment)
>
> but there are a lot of inlines involved like this....
> probably there is an easier way, too....
>
> k 
>
>
>
>
>
> 2014-08-17 1:52 GMT+02:00 Zh Wu <wzhm... at gmail.com <javascript:>>:
>
>> For simplicity, I just designed four different scripts, but I am still 
>> wondering whether this is doable in Eprime:)
>>
>> On Wednesday, August 13, 2014 7:35:34 PM UTC-4, Zh Wu wrote:
>>>
>>> I am designing an experiment with two blocks, BlockA and BlockB. 
>>>
>>> I want 1/4 of participants to do BlockA randomly and then BlockB 
>>> sequentially, 1/4 of participants to do BlockA sequentially and then BlockB 
>>> randomly, 1/4 of participants to do BlockB randomly and then BlockA 
>>> sequentially, and 1/4 of participants to do BlockB sequentially and then 
>>> BlockA randomly. 
>>>
>>> I know how to select the blocks randomly (i.e., half participants do 
>>> BlockA first and the other half BlockB first), but for the specific list, I 
>>> don't know how to change the selection for a specific participant.
>>>
>>> Any help would be greatly appreciated!
>>>
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>
>

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