Math and Reading scores at the end of high school are unchanged over the past forty years, while Science scores suffered a slight decline through the year 1999, the last time that test was administered. Data from another nationally representative test series show a continuing decline in 12th grade Science between 1996 and 2005, the last year for which we have trend data.2
Presented with stagnant or declining performance in the face of a meteoric rise in federal spending per pupil, it is reasonable to ask: what happened to total spending? If state and local expenditures fell to such an extent that they offset federal increases, that might explain the profound disconnect revealed in Figure 2.
To answer that question, I present Figure 3, showing how the total cost of an entire k-through-12 public school education has changed over time.