<p>don’t forget that the test was changed in March 2006, so any tests prior to that time are not comparable. AND, Alg II problems were added in March 2006. Any given test may have 4 Alg II problems (or 5), all of which are considered “difficult” so the curve is not relevant; the number of ‘difficult’ & ‘medium difficult’ problems can vary by one or two per test, so it ain’t a curve folks, it’s difficulty variance.</p>