data logging through script

[David McFarlane]

Travis,

Suppose your Slide is called StimSlide.  Then try something like

... Then StimSlide.ACC = 1  ' for correct response

E-Prime might then take care of the step of setting the required 
attribute for you (I don't remember at the moment, and I'm too rushed 
to test it now), otherwise just go right to making the attribute yourself, thus

... Then c.SetAttrib "StimSlide.ACC", 1  ' for correct response

Note that since .ACC is always 0 (incorrect) by default you don't 
really need to use an If clause to set incorrect responses, but that 
is up to you.

Hope that helps,
-- David McFarlane, Professional Faultfinder


At 1/6/2010 03:24 PM Wednesday, you wrote:
>Hi,
>
>I'm not very good with script, so pardon the question, but...
>
>I am programming an experiment that displays 3 pictures simultaneously
>on a screen (using the Slide object). One picture, top and center of
>display, is the exemplar picture, and then two pictures, bottom-left
>and -right are approximates. The user is asked which bottom picture
>most closely matches the top picture. There are 6 trials like this,
>and the stimuli are controlled through nested lists ("top", "left",
>"right"). Naturally, the "correct" answer varies from the bottom left
>choice and the bottom right choice. Within the nested lists I have an
>attribute "ID" that identifies the correct choice (all "top", or
>exemplar pictures, are given an ID value = 1, and then the bottom-left
>and -right choices are given ID = 1 if correct, and = 2 if incorrect).
>The user pushes the left mouse button to select the left picture and
>the right mouse button to select the right picture. I have a series of
>simple If And If statements to assess accuracy (e.g., If Slide1.RESP =
>"1" And If Left.GetAttrib ("ID") = "1" Then ... correct).
>
>My problem is this: How do I log a correct/incorrect choice (the
>"Then" part of my above script)? In the past I've only done data
>logging where I was able to build the correct answer into my lists,
>but I don't see how to do that in this case. Instead, it seems I need
>the script to write the accuracy into the logs somehow, and I'm not
>sure how to do that.
>
>Any help is appreciated. Thanks!
>
>Travis

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