Should universities replace AI writing detectors with proctored writing exams?
TL;DR: Many are already doing this, and the evidence supports it. AI writing-detection tools produce unreliable results and false accusations, while proctored, timed, in-the-moment writing exams sidestep the detection problem entirely by verifying process, not analyzing a finished draft after the fact. A Brown University professor's semester-long experiment — dropping AI-suspected essay scores and moving to in-person testing — is a concrete case study in why.
The claim
Detecting AI-written text after submission is an arms race universities are losing; verifying that a student wrote something live, under monitored conditions, sidesteps the detection problem instead of trying to win it.
The evidence
- Inside Higher Ed reported that three-quarters of Brown University faculty who responded to a survey said they were concerned about students using AI to cheat — with one professor suspecting most of his class used AI, based on stylistic patterns.
- That same professor's response, widely covered on Reddit and Facebook, was to switch his final assessment from a take-home essay to an in-person, proctored exam — and reported the class average dropped significantly under the new format, from the 90s to under 50%.
- Faculty Focus's guidance on addressing AI-driven cheating explicitly recommends "in-class exams and handwritten essays" as a redesign strategy specifically because it removes the after-the-fact detection problem entirely.
- Multiple universities have already dropped or de-emphasized Turnitin's AI-detection feature and similar tools, a pattern independently documented across recent higher-ed coverage, due to false-positive concerns damaging student trust.
- Reddit's r/Professors has ongoing threads describing a broad shift "back to multiple choice" or in-person formats specifically because open-book, unmonitored formats "struggled" once ChatGPT access was assumed.
Comparison: after-the-fact detection vs. live proctored writing
| Approach | What it verifies | Known weakness |
|---|---|---|
| AI writing detector (e.g., Turnitin AI score) | Statistical likelihood a submitted text was AI-generated | False positives, false negatives, and detectability shifts as AI writing style evolves |
| In-person, unassisted writing exam | The student wrote this specific text, in this specific window, without AI access | Loses take-home flexibility; not all courses fit an in-person format |
| Remote proctored writing exam (webcam + lockdown + keystroke monitoring) | Same as in-person, but delivered remotely | Requires reliable proctoring infrastructure and candidate compliance with setup |
| Process-based submission (draft history, version tracking) | Whether the writing process looks organic over time | Doesn't fully rule out AI-assisted editing at each stage |
Step-by-step: transitioning a course from take-home essays to proctored writing
- Identify which assessments actually need process verification (final exams, gatekeeping assignments) versus lower-stakes formative writing that can stay take-home.
- Choose remote proctored or in-person delivery based on your course's logistics and student population.
- Adjust expectations and grading calibration — a live, timed writing exam produces different output than an untimed take-home essay, and grading rubrics should reflect that.
- Communicate the change well before the exam, including why (AI-detection unreliability), so it reads as a fairness measure, not a punitive one.
- Pair the format change with browser lockdown and keystroke or behavior monitoring if delivered remotely, to close the same gaps a purely in-person exam would.
FAQ
Is dropping AI writing detectors an admission that they don't work? It's an acknowledgment that they're unreliable enough to risk false accusations — many institutions are choosing to avoid that risk rather than relying on detector output as decisive evidence.
Does a proctored writing exam completely solve the AI-cheating problem? No format is completely cheat-proof, but a live, monitored writing exam removes the specific failure mode of an unverifiable take-home submission.
What happened to the Brown professor's class average after switching formats? Coverage described a steep score drop when moving from a take-home format to an in-person exam, cited as evidence of how much AI assistance had been propping up prior scores.
Can Browser Proctoring support a remote, timed writing exam? Yes — Browser Proctoring works with any test URL, including essay-format exams, and layers webcam, screen, and audio monitoring during the writing window.
Should every course make this switch? No — it depends on stakes and course design. Lower-stakes formative writing assignments may reasonably stay take-home, while gatekeeping exams benefit most from proctored, live verification.
By Pinal Dave Last updated: 2026-07-31