1 Running head: Status of discrete-state MPT models The statistical accuracy and theoretical status of discrete-state MPT models: Reply to Batchelder and Alexander (in press) Chad Dube * , Caren M. Rotello † , and Angela M. Pazzaglia † * The Volen Center for Complex Systems, Brandeis University † University of Massachusetts Amherst Manuscript submitted for publication, please do not quote. Dr. Chad Dube Volen Center for Complex Systems Brandeis University Waltham, MA USA 02454 Email: cdube@brandeis.edu