Karine,
This can't be done out-of-the-box with the existing PEBL paired
associates task. There are probably three issues:
1. Mode of recall. In the current design, we use a mixture of both
recall and recognition to cue recall. I'm guessing you want to pick
just one of these for the design you are considering. These are run
with a function in the file called DoRecall and DoRecognition. You
could just use one of them.
2. The word lists. In the current design, I think that at least some
of the word pairs are randomly paired for each user. This is true even
for the similar pairs, in which the pairing is randomly sampled from
two words that are similar, so that you can have a fair foil if/when
using recognition rather than recall. Furthermore, you might want to
pick your own word lists rather than the ones that are built-in. You
need to think about whether everyone should have the same pairings,
which would make a two-round test much easier to score. Lines 23-134
are just about creating the lists. You could fairly easily make your
own list of word pairs and save them in a csv file with three
columns. The first is the cue word, the second column is the pairing,
the third is the foil. Note that if you are using recall, the third
column could be blank or filled with a dummy word. Once you create
this, save it in your pairedassociates directory with a name like
'mywordlist.csv', then:
a. delete all the code between line 23 and 134 (starting with names <-
["ABIGAIL", and ending with the line defining l4 <- Shuffle(....)b.
Replace this with a line that reads in your words:
list <- Shuffle(ReadCSV("mywordlist.csv"))c. Change the line 159 to
read
l1a <- DoPresentation(list)
d. Change the 'results1a <- DoRecognition(l1a)' line to 'results1a <-
DoRecall(l1a)' if you want recall instead of recognitione. Delete
everything between the line following this and the end of the start()
function, leaving in the debriefing message box that says:
MessageBox("Thank you for participating",gWin)
This should make it so it will just present your list of words and test
immediately on it.
3. Implementing second recall task. Luckily, if you have part 1 and 2
determined, this is relatively simple. You could basically make a
copy of the file and delete the lines DoPresentation() line. but give
the DoRecognition() list instead of list1a. In addition, on line 145,
change the following: gFileOut <-
GetNewDataFile(gSubNum,gWin,"paired","csv",header)
to something like: gFileOut <- GetNewDataFile(gSubNum,gWin,"paired-
round2","csv",header)
so the first and second round get saved to different files.
Let me know if you can get it working.
Shane
On Mon, 2017-05-15 at 08:06 +0000, Karine Scheuermaier wrote:
> Hello,
> We would like to test word pair recall in a sleep study, ie first
> have the participants encode in the evening (probe presentation)
> before a sleep condition and re-test with the same list, say, one
> hour later (so just a recall, but no presentation,
> and a recall on the same pairs that were initially presented) and
> finally give another presentation recall on the same pairs
> immediately followed by a presentation (again of the same pairs) and
> a final immediate recall.
> Then we would like to test the recall of these same pairs the
> following wake time and 2h later.
>
> I am really not sure how to do this now as it seems to only run as a
> presentation+ immediate recall with different lists of word pairs
> every time.
> Any advice would be very welcome!
>
> Thanks,
> Karine
>
> ---------------------------------------------------
> Karine Scheuermaier, MD, MMSc
> Lecturer, School of Physiology
>
> Faculty of Health Sciences
> University of the Witwatersrand
> 7 York Road
> Parktown 2193
>
> Johannesburg--South Africa
> Email:
> karine.scheuerma...@wits.ac.za
> Tel: 011-717-2453 (ext 72453)
> Fax: +27-86-765-4169 /
> 086-765-4169
>
>
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