PEBL's "Berg Card-Sorting Test (BCST), an free implementation of the Wisconsin Card Sort. Sort cards by an unknown and changing rule.
Data saved to bcst-X.txt and summary saved to bcst-report-X.txt in
bcst directory.
To cite:  Mueller, S. T. (2011). PEBL's Berg Card Sorting Test (PBCST).  Computer software retrieved from http://pebl.sf.net/battery.html
