Abstract: | Longitudinal studies were conducted to examine test-wiseness (tw) with respect to (a) grade differences, (b) grade by sex interaction, and (c) stability. Included in the tw measure were stem-option, absurd-options, similar-options, and specific-determiners. Ss were students in grades 5 through 11; 539 Ss were observed twice with a 2 year interval between observations. Results indicated (a) significant increases on tw in four of five cases, (b) no sex by grade interaction, and (c) tw as a stable characteristic over the grade levels studied. |