Elementary school students who frequently answered questions incorrectly in class were given daily homework assignments in social studies and math, but they rarely completed the assignments accurately and their classroom performance in social studies and math was only slightly better than when they did not have homework assignments. However, consequences provided for accurate completion of homework assignments increased the number of students completing homework and the accuracy with which homework assignments were completed. Further, assignments of homework with consequences for accuracy were associated with more accurate classroom performance.Students are often assigned homework on the apparent assumption that it will improve their academic performance and foster development of independent study skills. A number of articles have described the presumed advantages or disadvantages of homework assignments on the attitudes of students, teachers, and parents about homework assignments (e.g., Check, 1966;Langdon and Stout, 1957;Maertens, 1968;Schiller, 1954). Although several authors have reviewed the experimental literature on the assignment of homework (e.g., Goldstein, 1960;Otto, 1950;Swenson, Cost, and Taylor, 1955), there seems to be little agreement as to whether the assignment of homework is useful. Abramowitz (1937), Anderson (1946), Foran and Weber (1939), Hines (1957), Schain (1954), andSteiner (1934) The purposes of the two present experiments, in social studies and math were: (1) to evaluate the effects of assigning homework on students' subsequent classroom performance, (2) to develop methods of increasing the number of students who completed homework assignments at a reasonable level of accuracy, and (3) to evaluate the effects of assigning homework on students' subsequent classroom (WINTER 1974)