How to proctor a Google Forms quiz

Last reviewed 1 September 2026

Google Forms records answers and a timestamp. It cannot tell you whether a student left the page, pasted an answer, or had a second device open. That gap is what proctoring tools fill.

What browser-based proctoring can detect

• Leaving the quiz — switching tab, minimising, moving to another app, and how long they were away.
• Clipboard use — paste, copy and cut, and how much text was pasted. The character count matters more than the count of pastes.
• Leaving fullscreen, if the quiz asked for it.
• Right-click and print attempts.
• Pauses — the longest stretch with no typing or clicking.

What it cannot detect, whatever the marketing says

A browser sees its own page and nothing else. It cannot see a phone beside the laptop, a second person in the room, or notes on paper. It also cannot stop a determined student: the checks run as JavaScript on their machine, so anyone willing to open developer tools can switch them off.

Why the iframe matters

Most tools embed the Google Form in an iframe. Because that iframe belongs to google.com, the surrounding page is blocked from seeing anything inside it — so only whole-tab events like switching away are detectable. Paste, copy and per-question timing need the questions to be rendered by the proctoring tool itself.

Reading a report fairly

1. Look at the raw counts, not just a score.
2. Compare against the rest of the group — if everyone left the tab once, that is probably the tool or the instructions, not thirty cheats.
3. Treat a large paste into a short answer as worth asking about; treat one tab switch as noise.
4. Ask the student before concluding anything.