Detailed item analysis results for a form of the Scholastic Aptitude Test were examined for evidence of sex differences in test speededness. The conclusions were: (1) there was no evidence of appreciable differences in rate-of-work on any section of the Scholastic Aptitude Test; (2) there was some evidence that low-scoring females on the mathematical sections work at faster rates than would be anticipated by the data for males or higher-scoring females; and (3) there was some evidence that while the time limits were so generous as to reduce variance in failure to complete, there may have been sizable differences in time to go back over the test; the score implications of this variance are seldom considered. The complexity of speed-power relationships is such that sex differences could possibly exist in a number of ways not considered in this study. Omitting an item, for example, as opposed to not reaching it, is often held to have rate-of-work implications. (Author/JAC)