On Mon, 2015-11-16 at 10:44 -0500, Marie St Clair wrote: > PEBL Project, > I'm interested in using PEBL for my dissertation. I want to compare > the PEBL version of a neuropsychology test (probably the Trails A & B) > to the paper/pencil version in a military veteran sample. Other than > the sourceforge website I haven't found a lot of research out there on > PEBL. I'm wondering if you are aware of any research that has been > done with PEBL in the veteran population.
Lt. St. Clair, There are several ongoing and proposed projects currently underway with the VA that are using PEBL tests on veterans. Furthermore, about 10-15 tests are based on ones originally described in Perez's Tri-service unified test battery in the 1980s, which later became the Walter Reed Test battery, and later was commercialized and is used extensively in military and veterans. > I'm also wondering if it would be better to do within subject design > or between subject design? Doesn't the design depend on what I'm > looking at or what my research question is? If I do a within subject > design then wouldn't test-retest be an issue? If I did a within > subject design I would have to give both tests at that time because > some of the veterans tested may live in other states. And if I do > between subject design then won't individual differences be an issue? > There are likely to be some learning effects on these tests, which will especially impact the paper trailmaking tests. I have a small data set comparing computerized to paper trailmaking tests (as yet unpublished). Let me know if you are going down this road and we may be able to pool data, or I could share with you the specific method we used. In the PEBL version, each problem is given twice--once under condition A and B; this is a huge problem with the paper trailmaking, because Trails B is much harder than Trails A even under the same instrucion conditions. In general, if you counterbalance order and do a within-subject design, you can always just ignore the second measure and test whether there was a difference on the first test only--essentially doing a between-subject test. Let me know if you'd like to discuss the method in more detail. Best, Shane > Very Respectfully, > > 1st Lieutenant St. Clair > The Chicago School of Professional Psychology > Clinical Psy.D. Student > Phone: 804-714-8990 ------------------------------------------------------------------------------ Presto, an open source distributed SQL query engine for big data, initially developed by Facebook, enables you to easily query your data on Hadoop in a more interactive manner. Teradata is also now providing full enterprise support for Presto. Download a free open source copy now. http://pubads.g.doubleclick.net/gampad/clk?id=250295911&iu=/4140 _______________________________________________ Pebl-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/pebl-list
