Following up on a recent post on college grade inflation, there’s also evidence that grade inflation is taking place at America’s high schools. In a study by the college entrance exam company ACT, it found evidence of significant grade inflation between 1991 and 2003 for high school students taking the ACT exam. While ACT scores remained stable between 1991 and 2003, the chart above shows that the average high school GPA increased for ever ACT composite score over that period. From the study:
“Each point on each curve represents the average GPA for all students in 1991 and 2003 who earned that specific ACT Composite score. The curve for 2003 is higher at every Composite score point than the 1991 curve, which is evidence of the existence of grade inflation.