Do Students Watch Lecture Recordings? What the Research Says

Do students watch lecture recordings? Some do, but usually less than instructors expect and less than students think. Studies find that a minority to a majority of a class views recordings depending on the course, that viewing tends to be partial and clustered before exams, and that recordings rarely harm outcomes. Students who attend and also review recordings tend to do best.

Do students watch lecture recordings?

Yes, but use varies widely by course, and total viewing time is often modest. The share of students who watch at all can range from about a third of a class to three quarters.

A Spring 2024 study by CU Boulder's Office of Information Technology tracked 159 students in three courses using Mediasite viewing data. In an in person undergraduate mechanical engineering course, 32% of students viewed recordings. In a lecture based graduate civil engineering course, 76% did. In a hybrid computer science course, 40% did, averaging 42 minutes of total viewing.

A University of Westminster study of a second year research methods module found that 48% of students viewed at least one of ten recorded lectures. At the University of Aberdeen, first year psychology students had a median of just over 30 minutes of recording use out of roughly 20 hours of lectures.

How do students actually use recorded lectures?

Most students use recordings selectively: to revisit hard topics, catch up on a missed session, or prepare for an exam. Few rewatch whole lectures from start to finish.

A summary of research presented in a 2014 lecture recording webinar, written up by Duke's Digital Media Community, reported that viewing peaks before assignment deadlines and especially exams. It also described one study in which students believed they had watched far more of a lecture than log data showed. That is a secondhand summary, but it matches what many teaching teams see in their own dashboards.

The University of British Columbia's lecture recording literature review lists the two most common uses as rewatching difficult topics and making up for missed lectures. Its most consistent finding is that recordings benefit students with disabilities.

Does lecture capture reduce attendance?

Sometimes, but not consistently. The research is split, and the course design seems to matter more than the recording itself.

• Drop in attendance. Edwards and Clinton compared matched cohorts before and after lecture capture was introduced and found attendance fell once recordings were available, as summarized in the UBC review. Watching recordings did not make up for low attendance.
• No clear drop. Nordmann and colleagues found attendance and recording use were not correlated at any year of study, with no evidence that students skipped lectures in favor of recordings.
• Active classes hold up. In a large active learning biology course at UC Irvine, recordings did not reduce attendance of about 90%, according to the UBC review.
• Within course comparison. A 2026 Trent University study that recorded half of the lecture blocks in four biology courses found attendance did not significantly decline in recorded blocks.

The CU Boulder authors reached a similar conclusion for their three courses: lecture capture did not adversely affect attendance or academic outcomes, though they note the sample was small.

What does lecture capture research say about grades?

Recording use is linked to modestly better results in some courses and no difference in others. Attendance remains the more reliable predictor of performance.

1. Supplement beats substitute. In the Aberdeen study, first year attendance and recording use both predicted exam marks, and weaker students benefited when they used recordings as a supplement to lectures they had attended. In honours years, neither predicted marks once prior GPA was considered.
2. Viewers can do better. At Westminster, viewers averaged 63.1% on the exam versus 57.4% for non viewers, and the gap held after controlling for attendance and prior ability. The author cautions that the study was observational.
3. Effects vary by course. At CU Boulder, the grade gap between viewers and non viewers ranged from 0.12 points in one course to 4.7 points in another.
4. Availability alone is not enough. The Trent study found viewers scored 4.7% higher, which the author attributes to self selection, yet exam grades were 6.0% lower in recorded blocks overall in adjusted models. Higher attendance consistently predicted better outcomes.

The pattern across studies: recordings help students who already engage, and they do not rescue students who stop attending. The UBC review puts it simply: what happens in class time matters most.

Why is recorded lecture engagement so hard to see?

Most lecture capture systems report views and minutes, not understanding. A play count tells you a student opened a video. It does not tell you whether they followed the argument at minute 22.

That is why self reports and logs disagree, and why viewing spikes the night before an exam are hard to interpret. Without signals inside the video, instructors cannot tell productive review from passive replay. Our video engagement analytics primer covers which metrics are worth tracking.

How can instructors make lecture recordings active?

Turn recordings from something students replay into something they respond to. Small prompts inside the video give students a reason to engage and give you evidence of where they struggle.

• Add a few comprehension checks. Two or three in video questions at key moments turn review into retrieval practice.
• Mark the hard parts. Add chapter markers or a short note at the moments students usually ask about, so review time goes where it is needed.
• Invite time stamped questions. Let students post a question at the exact moment they get lost, then answer the most common ones in the next class.
• Connect recordings to class time. Ask students to review a segment before an active learning session, rather than as a replacement for it.
• Watch moment level data. Look for spots where many students rewind or drop off, and revisit that concept live.

A concrete example: in a first year statistics course, the instructor adds one question after the worked example on standard error and invites time stamped questions throughout. Before the next class, she checks which question most students missed and where comments cluster. She opens the session by reworking that one example, so the recording directly shapes what happens live, and students who review it have a reason to arrive prepared.

Several tools can do parts of this. Lecture capture platforms such as Kaltura and Panopto handle recording and hosting; an interactive layer such as Annoto adds in video quizzes, time stamped discussion, and attention and comprehension analytics by moment on top of video hosted there. The goal is the same either way: evidence of learning, not just minutes watched.

Key takeaways

• The share of students who watch recordings varies widely by course, and total viewing time is often modest.
• Viewing tends to be selective and clustered before exams, and students may overestimate how much they watch.
• Evidence on attendance is mixed; several recent studies find no significant drop.
• Recordings work best as a supplement to attending, especially for first year and struggling students.
• Adding questions, discussion, and moment level analytics turns recordings into active learning.

Frequently asked questions

Do lecture recordings hurt attendance?

The evidence is mixed. One matched cohort study found attendance fell after lecture capture was introduced, while studies at Aberdeen, UC Irvine, Trent, and CU Boulder found no clear or significant drop.

Do students who watch recordings get better grades?

In some courses, yes, though the gap is often small and may reflect which students choose to watch. Attendance is generally the stronger predictor of performance.

Which students benefit most from lecture capture?

Research points to students with disabilities, first year students, and struggling students who use recordings alongside attending class. Students who stop attending tend not to make up the difference.

How can I tell if students understand a recorded lecture?

View counts alone will not tell you. Add short in video questions or time stamped prompts, then look at results and activity by moment to find where understanding breaks down.

To see how interactive video and moment level analytics work with lecture recordings in your LMS, visit Annoto for higher education.