Echo/ max count

[David McFarlane]

Tobias,

Thanks for a clear exposition of what you want.  Let's see if I can 
offer anything useful.

Problem 1:  I can't think of an easy way in E-Prime for this.  On my 
stimulus/response object I might try using and Duration of 0 with 
extended input (see Appendix C of the User's Guide), that would allow 
my program to go right to script where I could inspect and manipulate 
the input.  For that you would want to read up on the InputMask and 
related topics in the online E-Basic Help, and search aroung the 
Group and the Forum for more threads that cover "multiple responses" 
(also see MultipleResponseCollection.es in the PST Web Downloads area 
or E-Prime Google Group files).  I don't quite know how you would 
handle the Echo display, maybe you would skip the Echo and use an 
attribute reference and object.Draw to redraw the screen as needed 
after each key entry (and maybe use a Wait object for input, with a 
display object for the echo).  Anyway, once you get an acceptable 
response you could use .Terminate to stop the input 
mask.  Whew!  Maybe somebody else has a better idea.

Problem 2:  liw & I just addressed this today at 
http://groups.google.com/group/e-prime/browse_thread/thread/88ff4d154c205986 
, and I am about to add a bit more to that thread.

-- David McFarlane, Professional Faultfinder


>I am having a problem using echo and max count. Wonder if anyone can
>help...
>
>This is my experiment: 2 letters are presented and participants are to
>enter both of them. I found some topics in the forum that could help
>me composing a decent version. However, there remains a problem:
>
>Problem1
>
>- if I use a high max count, st. like 100, people could just enter
>many letters or at least more than 2 and then press the termination
>response key (for me it's ENTER)
>- if I use the excact number as max count, i.e. 2, the display will
>terminate without the people being able to check what they answered.
>Also, if people press BACKSPACE after the first letter, this will
>terminate the display.
>
>So put it clearly what I need: Participants should never see more than
>2 letters on the screen (and only these two should be recorded in the
>result file) and they should be able after the 2nd letter to still
>change the entered letters if they encounter a mistake.
>
>
>Problem 2
>
>- how can I specify two correct answers in the response key options?
>Can I enter two if max count > 1? will it also count ENTER as one
>reponse if that is my termination response?

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