Reliabilities for nor mal males over an average interval of 8.58 days (Mdn = 57 days) ranged from a low of .67 for Scale 6 to a high of .92 for Scale 0 (Butcher et al., 1989).
A parallel sample of females over the same retesting interval produced similar reliabilities ranging from .58 (Scale 6) to .91 (Scale 0).
Standard error of measurements for the different scales ranged from 2 to 3 raw score points (Butcher et a.l., 1989; Munley, 1991).
Future studies will no doubt provide a further evaluation of the MMPI-2's reliability over longer intervals and for various population groups.