presenting probes during text presentation

[Susan Campbell]

Hi,
I'm the new scripter on the STEP project (http://step.psy.cmu.edu).
I've set up a page of E-Prime sample scripts that we're going to be
adding to over time -- mostly simple implementations to fix common
problems.  It's at: http://step.psy.cmu.edu/script_samples/

Let me know if you think there are errors in the scripts or on the page.
 Also, I'm going to be adding to it from the archives we already have,
but if you haven't sent in scripts for the STEP project and would like
something to be included in these script samples, please let me know.

This, of course, brings me to the subject of this email (in case the
problem hasn't already been solved through personal email).  I've put
together a simple experiment that presents sentences and presents a
probe depending on whether there is one associated with the sentence or
not.  Since I'm not sure what the precise problem in this study is, I'm
not certain I've solved it in this script -- please let me know.  I did
not implement the text-length parameters, but I thought perhaps that the
script I created was extensible to long texts (as long as they are
separated into lists by passage, or there's a separate probe for each
sentence position).  The E-Prime file is located at:
http://step.psy.cmu.edu/script_samples/Sentence_Probe.zip

Thanks,
Susan Campbell
Research Assistant
Carnegie Mellon
<susanc at andrew.cmu.edu>




-----Original Message-----
Date:         Thu, 11 Oct 2001 16:36:39 +0100
Reply-To:     "W. Spooren" <w.spooren at let.vu.nl>
Sender:       Eprime List <eprime at STEP.PSY.CMU.EDU>
From:         "W. Spooren" <w.spooren at let.vu.nl>
Subject:      presenting probes during text presentation
Comments: To: eprime at mail.talkbank.org
Content-Type: text/plain; charset="ISO-8859-1"

Hi,

We're trying to develop an experiment in which we use
e-prime to present longer texts (say 300+ words) sentence by
sentence. A sentence remains on the screen until the
participant presses a key, and the next sentence appears.
After particular sentences participants are asked to verify
whether a probe word was or was in the previous text.
Particularly the presentation of the probe words gets us
into trouble. Does anyone have a model experiment from which
we can copy (parts)?

Thanks a million.

Aleth Bolt
Wilbert Spooren
Vrije Universiteit Amsterdam