I don't think that the APA Style Manual Addresses this. I just glanced
through my copy (5th edition) and couldn't find this. That means to me
that it is up for grabs. My question is this: is this for a presentation
or a publication. That is, are you giving a talk (obviously you're doing
that), but are you also publishing the presentation in some way?
I think that you are obligated to make it clear what work is not your
own. In a printed copy of your presentation (or online copy), an
extensive reference list at the end would be appropriate. In a
presentation, you are not going to spend the time going through that
extensive list. During the presentation, you don't want to distract
people with lots of details about references, but you must be scrupulous
about giving credit where credit is due. Thus, if you are showing a core
image that was created by someone else, that should be referenced in the
presentation (something like what you would have for the citations in the
body of the paper) along with a full citation at the end. If the images
you are using are others' work and are core to your presentation, you
might also consider providing the audience with a list of references (if
you are not copying your entire presentation). Unfortunately, there don't
seem to be any official APA guidelines (at least, not that I could find),
so you have to be sure that you are not interrupting the presentation
with needless detail of citation, but not making the audience think that
work that is others is yours.
--David
--
David M. Marcovitz
Microsoft PowerPoint MVP
Director of Graduate Programs in Educational Technology
Loyola College in Maryland
Author of _Powerful PowerPoint for Educators_
http://www.PowerfulPowerPoint.com/