Grade inflation, the practice of awarding higher grades than students may truly deserve, has been a persistent and evolving phenomenon in U.S. education. This trend not only diminishes the perceived value of academic degrees but can also mislead students about their actual knowledge and accomplishments. Tracing its roots and development reveals a complex history, marked by periods of rapid acceleration and more gradual increases, impacting both high schools
and universities across the nation.
Early Indicators and Post-Secondary Shifts
Early signs of grade inflation at the post-secondary level emerged in the mid-20th century. A survey of 134 colleges between 1965 and 1973 reported an increase of 0.404 points in average GPA. A subsequent study, examining 180 colleges from 1960 to 1974, found a similar rise of 0.432 GPA points, both strongly suggesting the presence of grade inflation during this era. Stuart Rojstaczer, a retired geophysics professor, has compiled extensive historical data from over 400 four-year schools, some dating back to the 1920s, which consistently show nationwide grade inflation over time. His research also highlights regular differences in grading practices between various types of schools and academic departments.
Key historical trends identified in this data include a divergence in average grades between public and private institutions beginning in the 1950s. A particularly sharp and widespread rise in grades occurred from the mid-1960s to the mid-1970s, a period coinciding with the Vietnam War years. Following this, grades remained relatively stable from the mid-1970s to the mid-1980s, before embarking on a slow but steady ascent from the mid-1980s to the present day.
The Rise of Data and Recent Accelerations
For a long time, concrete evidence of grade inflation in the U.S. was scarce, often anecdotal, and sometimes even contradictory. National surveys in the 1990s generally indicated rising grades in American colleges and universities. However, a 1995 survey of college transcripts by Clifford Adelman, a senior research analyst in the U.S. Department of Education, surprisingly found a slight decline in grades during the 1970s and 1980s. Data specifically for American high schools was also largely unavailable during this period.
More recent data, however, leaves little room for doubt regarding the upward trend of grades in American colleges, universities, and high schools. A 2003 evaluation of grading practices across over 80 institutions, encompassing more than 1,000,000 students, revealed that since the 1960s, grades in the U.S. have increased at a rate of 0.15 points per decade on a 4.0 scale. An annual national survey of college freshmen further indicates that while students are reportedly studying less in high school, an increasing number report achieving high school grades of A- or better. This suggests a disconnect between perceived effort and awarded grades.
Secondary Level Trends and Completion Rates
At the secondary level, data from the ACT shows a sharp acceleration in grade inflation since 2016, particularly during the COVID-19 restrictions. A majority of students taking the ACT have reported being labeled as "A" students by their high schools. Despite these impressive GPAs on ACT registration forms, the average ACT scores have actually declined since 2012. This discrepancy points to a significant inflationary trend. Further evidence comes from the Department of Education and the National Assessment of Educational Progress, which have also found strong indications of grade inflation alongside declining academic achievement.
A 2021 study from the National Bureau of Economic Research identified a significant drop in college completion rates between 1970 and 1990, especially among male students. From 1990 to the present, the study observed a more-or-less steady improvement in completion rates. However, the study also noted that first-year students are no better prepared for college-level studies than their predecessors from 1990, and the quality of instruction provided by colleges has not improved since 1990. The researchers concluded that the only plausible explanation for these improved completion rates is grade inflation. This finding was reinforced by a 2022 study that directly linked grade inflation to rising graduation rates in the United States since the 1990s, given that GPA is a strong predictor of graduation success.
Institutional Responses and Ongoing Debates
Some institutions have attempted to address grade inflation directly. Princeton University, for instance, implemented new guidelines in the autumn of 2004 to manage grading distributions. These guidelines encouraged departments to clarify their grading policies and suggested that, averaged over several years, A-range grades should constitute 35% of grades in classroom work and 55% in independent work like Senior Theses. This policy led to a significant decline in A-range grades in Humanities departments, while Natural Science departments, already close to the 35% guideline, remained relatively constant. By 2009, the policy had successfully brought undergraduate grades within the targeted ranges, with A grades falling below 40% for the first time since its approval. This demonstrates that institutional efforts can, to some extent, counteract the trend of grade inflation, though the debate over its existence and impact continues at various institutions, including Harvard and the University of Alabama.
