Global variable script problem: type mismatch

[liwenna]

Hello S.

No e-prime at hand at the moment (nor in the coming week), but a first
thing that you could try is to change the elseif in the second
statement of the if-part in if:

If InputSlide.RESP = 1 Then
        g_nTotalPositive = g_nTotalPositive + 1
If InputSlide.RESP = 4 Then
        g_nTotalNegative = g_nTotalNegative + 1
Else
End If

It's a hunch but I think I remember that doing just that fixed a
similar problem for me at times.

Best regards,

liwenna

On Jul 25, 4:52 pm, Recursion <infinitypara... at gmail.com> wrote:
> I'm having a little problem with a script I wrote to keep track of
> subject responses. Just to clear up any ambiguity with the variable
> names, know that a keyboard response of '1' indicates a "positive"
> response--the subject agrees with the statement on screen. A keyboard
> response of '4' is a negative response--disagreement.
>
> The problem is that there is a time-out condition--subjects only have
> 5 seconds to respond. The script works fine, except in cases where the
> slide is allowed to timeout. In such a case, I get a type mismatch
> error pointing to the first line in the If statement. Here's the
> script:
>
> -------------------------------------------------------------------------------------------
> 'Calculates total trial number
> 'Calculates total number of positive subject resp
> 'Calculates total number of negative subject resp
> g_nTotalTrials = g_nTotalTrials + 1
>
> If InputSlide.RESP = 1 Then
>         g_nTotalPositive = g_nTotalPositive + 1
> ElseIf InputSlide.RESP = 4 Then
>         g_nTotalNegative = g_nTotalNegative + 1
> Else
> End If
>
> c.SetAttrib "TrialCounter", g_nTotalTrials 'set for display and
> logging
> c.SetAttrib "TotalPositive", g_nTotalPositive 'set for display and
> logging
> c.SetAttrib "TotalNegative", g_nTotalNegative 'set for display and
> logging
> ------------------------------------------------------------------------------------------
>
> Perhaps I should consider some sort of typecast? Is a failure to
> respond of type bool? Come to think of it, I'm not entirely certain of
> this. I have another script that runs a contingent branch on the slide
> objects used for feedback. Here's that script:
>
> ----------------------------------------------
> If InputSlide.RESP = "1" Then
>      Feedback1.Run c
> Else
>      Feedback2.Run c
> End If
> ----------------------------------------------
>
> I'd like to change this to lead to a third feedback slide object in
> the event that the subject fails to respond within 5 minutes--but to
> do this I need to know how a failure to respond in time is even coded--
> what its type is.
>
> Thanks so much!
> S
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