Is Grade Inflation Bad?
C used to be the most common college grade and an A was rare. Now most students get As and Bs, and the shift has almost nothing to do with students learning more — one study compared a decade of near-identical courses at the same college and found identical test performance with higher grades. The causes are wonderfully strange: draft deferments during Vietnam, students behaving like paying customers, and professors whose careers depend on student evaluations. Note the title, though. The deck asks whether it's bad, and it does not assume the answer.
Open the student page for this topicOne-Week Instructional Plan
The Year 1 rhythm, with a heavy Monday — thirteen data and explanation slides — and a Tuesday built on choosing two of three readings. This topic assumes students have already done the cost-of-college seminar; the deck refers back to it directly, so run them in that order if you can.
Grades Went Up. Learning Didn't.
Free write (5 min): what do you know — or question — about grading standards and grade inflation?
The terms first. Unweighted GPA runs from an A at 4.0 down to a D at 1.0. Weighted GPA counts advanced and honours courses a point higher, so an A in honours is a 5.0. Grade inflation is the rise in the average grade assigned — specifically, awarding higher grades than were previously given for the same level of achievement.
The core evidence, in sequence:
- The distribution of college letter grades over time. Cs used to be the most common grade and As were rare, reserved for exemplary work. Now most students receive As and Bs. Come back to this chart repeatedly — the whole week hangs on it.
- "But are students just better prepared?" The obvious objection, and the deck answers it directly. One study examined a college where GPA had risen, isolated courses with near-identical requirements and tests across a decade, and found the same test performance with higher grades. The researchers concluded that grading standards had been relaxed, and that student employment and high school preparation were unlikely to explain it.
- High school GPA over time, rising as well — then the crucial comparison slide.
- NAEP scores. The National Assessment of Educational Progress exists to track American educational achievement over time. Put the GPA trend and the NAEP trend side by side. If grades rise while independent achievement measures don't, the grades are measuring something other than learning.
Then the causes, which are the most entertaining material in the Education cluster:
- Vietnam. Male students could avoid the draft with a student deferment as long as they were passing and progressing toward a degree. Many professors were unwilling to give a bad grade that might make a student draft-eligible. Campus unrest in the 1960s also expanded pass-fail options. Not every school changed — but some never changed back.
- Students as consumers. College costs far more than it used to and competition for students is fierce. If students paying a very large sum come to see a degree as something they purchased, pressure builds to make passing easier — and colleges have their own incentive to seem passable.
- Professor evaluations. Student evaluations can determine promotion, tenure, salary, and whether a course runs again. Informal online ratings shape who enrols. A professor who grades hard may pay for it.
- College admissions pressure. Selective colleges want unweighted GPAs around 3.5, and elite ones want close to 4.0. High school teachers may nudge grades upward to protect students' prospects — or simply to avoid an argument with a student or parent.
Assign the readings — students choose two of three and bring a quote from each:
- Grade Inflation Continues in US Colleges — Times Higher Education Link coming soon
- Grade Inflation Is Just Plain Bad. Right? Maybe Not. — Washington Post Link coming soon
- A Is for Average (Or Even Awful) — Michigan State Link coming soon
Quotes, a Study Abstract, and the Signal Problem
Mindful moment (5 min): think about how grades make you feel, and then about what the data says they actually mean. The gap between those two is the topic.
Breakouts (15 min): students share the quotes they pulled from their two chosen readings and compare what each person found important. Since students read different pairs, the room genuinely learns something from each other.
Then the study abstract (10 min). Students read the abstract of a published paper on grade inflation and student effort, and discuss:
- What does the study conclude? What does it suggest about how hard students work when grades are inflated?
- The best question on the slide: if an A is easy, could the motivation shift from earning a good grade to avoiding a bad one? Is that a different kind of motivation — and does it work as well?
Then the differentiation problem. If most students get As and Bs, truly exceptional students become hard to distinguish from merely good ones. Consequences worth drawing out:
- Students have to prove themselves through other signals — test scores, extracurricular achievement, portfolios.
- Employers and colleges lose GPA as a way to identify the strongest applicants.
- A genuinely bad grade becomes more informative — a signal to the student, and to employers, that a different field might suit them better.
- And the counter-case: being forced to demonstrate ability in ways other than grades might be no bad thing.
What Is a Degree Worth?
Mindful moment (5 min) — the deck's own suggestion is a haiku about lobsters in space, shared in the chat. It's a deliberate palate cleanser before a heavy day, and it works.
The Harvard case. One professor issues two grades to each student — the official one for the transcript, and privately, what he actually thinks of the work. A short interview with him anchors the discussion about what inflation does to professors and to the meaning of a degree.
Then the value question, with numbers:
- If grades are higher on average, a degree arguably requires less work — which should reduce its value, in job requirements or in salary.
- The six-year graduation rate across public and non-profit institutions rose from 52.0% to 59.7% between 1990 and 2010 — and a recent study attributes that rise mostly to grade inflation, finding that other factors like student employment, cost, and high school preparation would have pushed the other way or done nothing.
- Average lifetime earnings with some college but no degree: $1.9 million. With a bachelor's degree: $2.8 million.
The question underneath all of it: is a degree valuable because of the knowledge it represents, or because of what it signals to employers? If it's mostly signalling, then inflation erodes the signal — and the gap between $1.9 and $2.8 million becomes very hard to justify. Should those two numbers be closer together?
Before students leave: themes, lingering questions, and one new resource for Thursday.
Design a Better Grading System
Mindful moment (5 min), and it's the best prompt of the week: if you designed a grading system or scale, what would it look like?
Then resources are shared, and each student picks a classmate's link to evaluate — why this one, and what does it add?
The designs students produce are where the week's ideas get tested. Anything they propose has to survive the same questions the current system failed: does it differentiate? Can teachers apply it consistently? What incentives does it create for the people doing the grading? And who does it disadvantage?
Score Your Participation
The four reflective questions, then the participation matrix. Students also use the participation rubric to score the week and explain the score.
Notes for the Guide
An unusual feature of this week: the students in the room are the beneficiaries of the phenomenon under examination, and the person leading the discussion is one of the people assigning the grades. Naming that on Monday makes the rest of the week considerably more honest.
The Comparison That Proves It
- The single strongest piece of evidence is the study isolating near-identical courses across a decade: same tests, same scores, higher grades. It closes off the "students are just better now" escape route with a controlled comparison rather than an assertion.
- Reinforce it by putting GPA trends beside NAEP scores. NAEP exists precisely to track achievement independently of grades, which is why the comparison is legitimate.
- Students will still propose alternative explanations. Good — ask them what evidence would distinguish their explanation from grade inflation. That's the exercise.
The Causes Are the Fun Part
- Vietnam reliably astonishes students: a grading practice that persists today partly because professors in the 1960s didn't want to send anyone to a war. It's an excellent case of an institutional habit outliving its cause.
- Students as consumers is uncomfortable and worth pressing. Ask directly whether they think of school as something they receive or something they purchase — and connect it to the cost-of-college data.
- Professor evaluations hits close to home, since students evaluate teachers here too. Ask whether they grade teachers more kindly when the class is easy. Most will admit it.
- Teacher self-interest should be named honestly — avoiding an argument with a parent is a real incentive, and students already suspect it.
Where Discussion Tends to Go
- Keep the title's question open. "Is grade inflation bad?" is genuinely contested — one of the three readings argues it isn't. The strongest defence is that grades were never a good measure of learning, so degrading a bad measure costs little.
- The motivation argument cuts both ways. Easier As might reduce effort — or the fear of standing out with a bad grade in a room of As might increase it. The deck asks this explicitly and the honest answer is unsettled.
- The differentiation problem lands hardest with students applying to competitive colleges, who are already living it — which is exactly why test scores and extracurriculars have grown in weight. Connect this to the test scores topic.
- Watch for the trap where students conclude their own grades are meaningless. The finding is about averages and systems, not about any individual's work.
Adapting This Topic
- Sequencing: run this after the college cost topic. The deck refers back to it twice, and the students-as-consumers argument depends on students having seen the tuition data.
- Source note: the study behind the motivation discussion is Philip Babcock's Real Costs of Nominal Grade Inflation: New Evidence from Student Course Evaluations (Economic Inquiry, 2010). The abstract alone is enough for the Tuesday exercise. Link coming soon
- Short week: Monday cannot compress much — it carries thirteen slides. Merge Wednesday and Thursday and keep the design-a-grading-system prompt.
- Pairs well with: the test scores topic, which shows the same grade inflation in its GPA data, and the college debt topic.