Picture an 8 a.m. lecture you could attend in person or watch later. The recording will be up by lunch. You could sit in the room, or you could watch it at double speed with a question bank open in the next tab.

You wouldn’t be alone in choosing the second option. When researchers at one US medical school surveyed their first- and second-year students, only 63% of first-years and 53% of second-years said they attended any lectures that weren’t mandatory. The top reasons for skipping had to do with how efficiently students could take in the material, and with the instructor or the style of the class. A 2022 paper in the same journal put the share of second-year students who almost never attended in-person lectures during their preclinical years at nearly 28.8%.

Skipping isn’t the same as slacking. It’s a bet that you’ll learn more on your own schedule. Sometimes that bet pays off. Sometimes it really doesn’t.

Why skip at all?

Because the alternatives can be good.

Recorded lectures let you pause, rewind and skip what you already know. Question banks tell you right away whether you got it right, and why. Flashcard apps bring older material back on a schedule instead of leaving it to chance. Stack those together and a live lecture can start to look like the least efficient hour of your day.

The research backs part of that instinct. In a 2008 paper in Medical Education, Larsen, Butler and Roediger laid out the evidence that repeated testing beats repeated studying for long-term retention, especially when the testing is spaced out over time. That’s a good argument for making questions and spacing part of your routine, whatever you do about lectures.

There’s also a large body of evidence on lectures themselves. A 2014 meta-analysis in PNAS pooled 225 studies of undergraduate science, engineering and math courses and found students in traditional lecture sections were 1.5 times more likely to fail than students in sections that used active learning. Those weren’t med school courses, so don’t stretch it too far. It’s an argument for active learning, not proof that your 8 a.m. is a waste of time.

So is skipping lecture a good idea?

Depends what you replace it with.

If you replace it with rewatching the recording, passively, at double speed, you’ve swapped one kind of listening for a faster one. It feels productive. But recognizing information on a screen isn’t the same as pulling it out of your own head.

If you replace it with active work, like questions, cards you wrote yourself or explaining a mechanism out loud to a friend, you’re getting the retrieval practice the research points to.

The real risk is skipping lecture and then quietly skipping the replacement too. Usually in the hardest stretch of a block, when it’s easiest to tell yourself you’ll catch up on the weekend. You know who you are.

What you lose when you’re not in the room

Some things don’t make it into the recording.

The person who writes your exam. In the room, you hear how faculty talk about what matters, and you can ask them directly. Check whether the recording captures the discussion, or just the slides.

Small groups and case sessions. These are often where the material starts to look like actual medicine. Know which ones are required and what you’d lose by missing them.

Questions you didn’t know to ask. Someone else asks the thing you were confused about but couldn’t put into words.

Your people. Med school is long. If you mostly study alone, make a separate plan to stay connected with classmates. You’ll want them later.

What schools are doing about it

Some schools are designing around it rather than fighting it.

A flipped classroom is one approach. You watch or read the content first, and class time goes to cases and problems you can’t do alone. Team-based learning is another, built around preparing beforehand and working through problems in teams during the session.

The other shift is in how practice is organized. If your school provides board-aligned question banks for medical programs, find out how the assigned practice lines up with what’s being taught each week. Used that way, it’s the same habit you’d build on your own, just tied to the course.

A week that works whether you go or not

If you’re going to skip some lectures, have a plan.

• Watch new material once, at a speed where you can still take notes.
• Do questions on it the same day. Not tomorrow.
• Make cards only for what you got wrong or had to guess.
• Show up to every small group, case session and lab.
• Once a week, do a mixed set of questions from older topics.

That last one is the easiest to drop. Protect it anyway. It’s your chance to pull older material back out after a delay, which is exactly what the testing research rewards.

Then check whether it’s working. Mixed-set scores on older material are one good check, along with your course exams and whether you can explain a topic without notes. If those numbers slide for a couple of weeks, change something. Going back to lecture for a while is a perfectly reasonable experiment, and so is a quick conversation with an instructor or an academic support advisor.

Make the choice deliberately

What matters in the end is whether you can reason through a patient, not whether you were in a seat at 8 a.m. If skipping lecture gets you there, fair enough. Just be honest with yourself about whether you’re replacing the lecture or avoiding it.