Are There Any Negative Effects of Watching Lesson Videos at 2x Speed?

We want to learn a lot in less time by watching long and sometimes boring course recordings at twice the normal speed, sometimes even faster. So, in this case, how does the efficiency we get from what we watch change?

In a study conducted at Ucla University in 2022; in parallel with the speed of watching the videos of the students, their capacity to understand A study was conducted on how it changed.

Researchers, 231 students TWO on different subjects He watched a video and then did a comprehension test.

Students watching two very different videos on real estate and the Roman empire, into four different groups Left.

One group at normal speed, one group at 1.5x the normal speed, another at 2x speed, the last group watched the videos at 2.5 times the normal speed. Immediately after watching, students were given comprehension tests, each consisting of multiple choice and true-false questions.

While the group watching the videos normally answered 26 questions out of 40 correctly, the group watching the videos at 1.5x and 2x speed did not pass this test. 25 points took. Accordingly, the videos at 1.5x and 2x speed The students who watched the test had only a small difference in comprehension and the rate of answering the test correctly compared to those who watched at normal pace.

According to the results of this study, the data actually show even more when students spend half of their time watching videos. same yield It shows they can get it.

But there is a small problem: This is not the case for 2.5x!

speed

The group that watches the videos at 2.5x speed is as good as the other groups. did not succeed and, on average, could answer 22 questions correctly.

These results actually contradicted the students’ expectations.

85% of those who watch the videos regularly watch their own lecture videos. they speed up While saying that, 91% thought that normal speed or 1.5x speed would produce better results than 2x or 2.5x speed.

Does it matter in what order these videos are watched?

lesson

76% of the students participating in the study said that watching a video first at normal speed and then in accelerated will increase their understanding was thinking.

However, the study did not confirm this, and students were encouraged to watch time-lapse videos. when they change their watch orderUnfortunately, he could not see a difference in comprehension rates.

A week later, some more tests were applied to the same groups in order to evaluate the rate of watching the videos and the rate of retention of what they watched.

While the normal speed group got 24 points out of 40, the students watching the videos at 1.5x and 2x speed got 21, 2.5x speed averaged 20 points.


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