Abstract
One of the most widely implemented educational reform efforts of the last two decades has been the adoption of increased high school graduation requirements, especially in mathematics and science. The present study examines the effect of that reform. More particularly, this article first investigates the extent to which a commonly adopted requirement that students complete three credits in mathematics and science was implemented at schools. Using multilevel regression analysis, the study then examines the relationship between three-course requirements in mathematics and science and three expected outcomes: increases in the number of credits students earned in mathematics and science, increases in the level of mathematics and science classes completed by students, and increases in student achievement in math and science, as measured by 8th- to 12th-grade test score gains. To test this relationship, the author drew a nationally representative sample of 1992 public high school graduates from the National Educational Longitudinal Study conducted in 1988. Analysis of these data indicates that many schools that required students to complete three courses in math or science in order to graduate did not strictly enforce this policy, allowing a substantial percentage of the students to graduate without earning three credits in these subjects. Nevertheless, three-course requirements influenced students to earn more credits in mathematics and science; however, only some students completed this additional coursework in advanced classes. In addition, student test score gains did not vary by high school graduation requirement policy. These findings suggest that increasing the number of credits students have to earn in mathematics and science to graduate from high school by itself may not be sufficient to improve student proficiency in these subjects.
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