Longitudinal studies of test wiseness (TW) were conducted to determine: (1) the relationship between TW and grade level, (2) the relationship between TW and sex, and (3) the stability of TW. Aspects of TW observed included stem cue and specific determiner identification and usage and the elimination of similar and absurd options. Subjects were observed three times at two year intervals in grades 5, 7, and 9; 6, 8, 10; 7, 9, 11; and 8, 10, 12. Results showed low to moderate internal consistency for the 16 item TW scale and test-retest correlations of approximately the same magnitude as KR20 indicating TW was somewhat stable over the intervals observed. Sex by year MANOVA trend analysis showed no sex effects and no sex by year interactions. A significant linear trend was observed over all four-year intervals with a quadratic trend appearing in the 7, 9, 11 sample. (Author/RC)