Key points are not available for this paper at this time.
Internal consistency reliability estimates were obtained for two samples of college students for the Jackson Personality Inventory using Bender's coefficient theta. In the California sample ( n = 82), values ranged from .84 to .95, with a median of .93. The Pennsylvania sample ( n = 307) yielded a range of .75 to .93, with a median of .90.
Douglas N. Jackson (Fri,) studied this question.