Provides that, beginning with the 2006-07 school year, school districts shall administer annual diagnostic assessments to all students in the third, fifth, sixth, eighth, and ninth grades in the content areas of reading, mathematics, and science. School districts shall select the diagnostic assessments from those made available by the office of the superintendent of public instruction under this act. Results of the assessments and relevant student, school, and district characteristics shall be compiled by the superintendent of public instruction to permit research and analysis.