Naomi, The scoring depends a lot on which version you are wanting to use (meaning the choice at the beginning from around 12 different game types). Because there are so many variations on the rules, I don't incorporate a solver that finds the minimum number of moves for arbitrary problems. Some of the problem sets have published the minimum solution moves, and where possible I include those. For some of the rule sets, the problem space has also been published so I have minimum moves between any pair of positions. But for some versions, we know the standard start/end but not the minimum number of moves. In those cases, I use a dummy value, which is where the -24 is probably coming from. For the 'score', this is only really useful when you allow restarting and require solutions that are produced with the minumum number of moves. This counts how many tries it took them to get the best solution; 3 if they got it on the first try, 2 if on the second, 1 if on the third, and 0 if they didn't get it by the third try.
You should look at the different published versions we implement to see which one you are most interested in using. Probably the tol-dx is one of the most standard sets with the good psychometric data: Culbertson, W. C., & Zillmer, E. A. (1998). The Tower of LondonDX: A Standardized Approach to Assessing Executive Functioning in Children. Archives of Clinical Neuropsychology, 13(3), 285-301. doi:10.1016/S0887-6177(97)00033-4 The versions differ in how much they focus on pre-planning versus sort of intuitive solving, and you should consider the specific modes you care about. If you have any other questions, email me off-list and I'll try to help. Shane > Hi, > > I'm a postdoc at UCSD. I'm about to start an experiment investigating > effects of sleep at altitude on neurocognitive function and I would really > like to use your PEBL software to run some of the tests. I'd like to use > the tower of london, but I think there is an error as it shows the number > of moves taken, but then it always shows the minimum number as -24. Is > there some way I can work out what the minimum number of moves should > really be? Also, I'm not sure what the score is meant to mean as it just > increases by 3 each trial. Can you please explain what that means? > > Thank you, the software is fantastic and I really appreciate any help you > can give. > > Thanks, > Naomi > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! > http://sdm.link/slashdot_______________________________________________ > Pebl-list mailing list > Pebl-list@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pebl-list > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Pebl-list mailing list Pebl-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pebl-list
