
 NAEP  LongTerm Trend: What Mathematics Measures 
  NAEP has assessed the mathematics achievement of 9, 13, and 17yearolds ten times: in the school years ending in 1973, 1978, 1982, 1986, 1990, 1992, 1994, 1996, 1999, and 2004. 
  The mathematics trend assessments contained questions designed to measure performance on sets of objectives developed by nationally representative panels of mathematics specialists, educators, and other interested parties. 
  The objectives for each assessment prior to 1990 were based on the framework used for the previous assessment, with some revisions that reflected changes in the content of mathematics education. 
 nces.ed.gov /nationsreportcard/ltt/what_measure_mathematics.asp (323 words) 
