echo function help

[Jan Seifert]

You could insert another display object with transparent background, that 
does the feedback. 


>Hello, I'm looking for help with the echo property of input collection. 
>specifically, I'm having participants make ratings of objects on a 1 to 9
>scale, and I want to echo their rating back to them before moving on to the
>next trial.  If I set input to take only one number, then echo displays nothing
>on the screen and moves on to the next trial.  I tried inserting a wait
>procedure after the display procedure, thinking that it was just updating the
>screen too quickly after the trial, but no dice.  Then I tried setting the
>input to take two characters, and having participants hit return to register
>their judgment.  When I do this, echo will display the first number typed, but
>not a second.  This also raises lots of problems because now participants can
>hit return twice and never enter a judgment, or can hit a number twice and make
>an impossible judgment.  Am I doing something wrong, or is echo not designed to
>display a single character?


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\ Jan Seifert
\ FB I - Psychologie
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\ Universität Trier
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