Dynamic generation of procedures and blocks based on responses

[David McFarlane]

Shensheng,

In short, yes, E-Prime could handle this.  Instead of dynamically 
generating "procedures", I would dynamically generate or manipulate 
Lists and just run them through the same Procedure, just as I would 
with any other programming platform.  Too tedious to go into any 
further detail here, but as a start you might look at the 
"Study-Recall" example at the PST website, or maybe browse the 
examples at step.psy.cmu.edu .

-- David McFarlane


At 7/31/2013 04:08 PM Wednesday, wdwss wrote:
>I want to execute an experiment consisting of a series of sorting 
>tasks with 90 faces in the E-Prime. In the experiment, the 
>participants will be asked to indicate if a face is threatening or 
>nonthreatening by pressing either one of the two button boxes as 
>quickly as they can, during which RTs will be recorded.  After the 
>first procedure of sorting that includes all 90 faces, some faces 
>(say, N= x)  will be "threatening" and the rest (N= 90-x) will be 
>"nonthreatening". Then, within the x "threatening" faces, another 
>procedure of sorting based on "slightly threatening" and "very 
>threatening"will be administrated automatically. Then, additional 
>procedures of sorting based on more or less "threatening" ratings of 
>the faces will be dynamically and automatically generated to specify 
>the threatening levels of the faces. These series of procedures 
>continue until there is only one face left in the "more threatening" 
>group as you can imagine. Since experimenters don't know which faces 
>will be judged "threatening", "very threatening" or whatever labels 
>we name them, the length (or depth in terms of loops) of the whole 
>experiment  is unknown prior to designing the E-Prime program.
>
>My question is if E-Prime and E-Basic have the capacity to enable 
>dynamic generation of new procedures, blocks and assigning stimuli 
>to them  automatically based on the choice of participants? How to 
>accomplish that? I learned that the task I intend to accomplish 
>looks very similar to the Contingant Branching, but it still has its 
>unique problem with the uncertainty in the number and content of "Branching".
>
>Looking forward to your precious comments, suggestions and critics!
>
>Thanks a lot!
>
>Best,
>
>Shensheng

-- 
You received this message because you are subscribed to the Google Groups "E-Prime" group.
To unsubscribe from this group and stop receiving emails from it, send an email to e-prime+unsubscribe at googlegroups.com.
To post to this group, send email to e-prime at googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/e-prime/51f977d2.ea90ec0a.1012.01a5SMTPIN_ADDED_MISSING%40gmr-mx.google.com.
For more options, visit https://groups.google.com/groups/opt_out.