administered with accommodations do not interfere with what the test was designed to measure or with the student's ability to earn a legitimate diploma. For example, a student with visual impairments may need a copy of the test in large-print or Braille. Students do not receive a diploma without obtaining the required minimum score on each test. Anything interfering with what the test was itself originally intended to measure is considered a 'modification' (for example, reading a test aloud to the student, if the purpose of the test is to determine whether the student can read), nullifying the results for graduation purposes. (These test results are still included in the calculations concerning school performance measures.) Schools offer modified tests to students with disabilities to let them participate, to the extent reasonable, in the normal activities of the school. Beginning with the Class of 2010, eligible disabled students may graduate without passing the California High School Exit Examination (CAHSEE). Eligible students have an Individualized Education Program (IEP) or Section 504 Plan that indicates that the student has satisfied or will satisfy all other state and local requirements to receive a high school diploma, except for passing the CAHSEE test. This exemption shall last until the State Board of Education either implements an alternative means for students with disabilities to demonstrate achievement in the standards measured by the CAHSEE or determines that an alternative means assessment to the CAHSEE is not feasible. Students with disabilities are still required to take the CAHSEE in grade ten for purposes of fulfilling the requirements of the federal No Child Left Behind Act of 2001. If a student has severe disabilities, an alternative test, the CAPA, can be given instead. This was intended to shorten the test for students whose chances of success on the CAHSEE were determined to be extremely low. There is no diploma granted under this condition, unless the student is exempted from needing to pass the actual CAHSEE. Effect on students Many schools and districts allow students who had failed the exit exam, but met other graduation requirements, to participate in the public graduation ceremony, although they may not receive a valid diploma unless they qualify for exemption as a student with a serious disability. Some districts present these students with certificates of completion to recognize that they have met all other graduation requirements. The certificate of completion signifies completion of the