Clicks on a visual analog scale

[Leisha Wharfield]

Dear Anna,

I'm not familiar with a visual analog scale that has boxes on it. But 
you can make them change color. I did it by throwing a different graphic 
up on a slide after determining whether the mouse click had touched an 
object on the screen. The subject could change his or her mind over & 
over. The slide ended with a space bar, so that once a subject clicks on 
an object, their selection is a different color and the screen also 
reads something like "Press the space bar to continue." You could also 
use just the mouse by providing a clickable "Submit" button or something 
similar.

You could have multiple rows, too, I'm sure, & throw up an error screen 
if the subject tries to advance without providing a click for each row. 
You could have code in an inline object after the slide that would 
determine whether an object had been clicked in all three rows before 
the space bar was used. If not, the subject gets a prompt like "Please 
click on your choice in row 2," or something like that. If you want to 
get fancy about it, you could highlight that row.

Leisha Wharfield
Decision Research
Eugene, Oregon, USA
leisha at decisionresearch.org

Abramson, Anna wrote:

>Hello,
>A couple of quick questions that maybe someone can offer some help on..
>1. Does anyone know how to modify the visual analog mouse click setup so that a subject can click and unclick until he settles on one final choice??
>
>2. Is there a way to have a selected box on a visual analog scale change so the subject can see his/her choice---ie, box is highlighted, Xed, changes color? I know how to do this on the Grid, but I cant seem to apply it to the visual mouse click.
>
>3. Is it possible to have multiple rows where the subject must choose one box per row--so the program allows multiple clicks, one per row?
>
>THANK YOU.
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