The authors compared the performance of third-grade students testing on answer sheets with those testing on machine-scored test booklets. The 1,832 students in the nationally representative sample were assigned at the campus level to complete the Stanford Achievement Test Series, Tenth Edition in 1 of 4 conditions: (a) Form A answer sheet, (b) Form A booklet, (c) Form B answer sheet, and (d) Form B booklet. After controlling for scholastic ability, no significant differences in performance on total reading, total mathematics, and total language strands were found between students using booklets and those using answer sheets. The results of this study provide no evidence to support the need to use separate test booklets with general education third-grade students. States may consider using separate answer sheets with these students to realize potential cost and schedule efficiencies.