This study examined whether having a teacher who chose an alternate route to certification (AC) rather than a teacher who chose a traditional certification route (TC) affects the reading and math achievement of elementary school students. The study included about 2,600 kindergarten through fifth-grade students and their 174 teachers. These students were enrolled in 63 schools across seven states. The study compared students' standardized reading and math scores from the California Achievement Test (CAT-5), which were collected at both the beginning and the end of the school year. The authors found that elementary school students whose teachers chose an alternate route to certification scored no differently on standardized math and reading tests from students whose teachers chose a traditional route to certification. The What Works Clearinghouse (WWC) found the study to be a well-implemented randomized controlled trial. [The following report was the focus of this "Quick Review": "An Evaluation of Teachers Trained through Different Routes to Certification: Final Report" (NCEE 2009-4043). J. Constantine, D. Player, T. Silva, K. Hallgren, M. Grider, M., and J. Deke. (2009) (ED504313).]