@article{ ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTEwMy9waHlzcmV2cGh5c2VkdWNyZXMuMTUuMDIwMTE0, title = {Demographic gaps or preparation gaps?: The large impact of incoming preparation on performance of students in introductory physics}, journal = {Physical Review Physics Education Research}, volume = {15}, number = {2}, author = {Salehi, Shima and Burkholder, Eric and Lepage, G. Peter and Pollock, Steven and Wieman, Carl}, publisher = {American Physical Society (APS)}, year = {2019}, issn = {2469-9896}, language = {English}, url = {http://dx.doi.org/10.1103/physrevphyseducres.15.020114}, url = {https://katalog.hszg.de/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTEwMy9waHlzcmV2cGh5c2VkdWNyZXMuMTUuMDIwMTE0} }