Jun 25 • 📔 Resource Tips
should you watch lectures at 2x speed? here’s what the research says
We've all done it.
A 60-minute lecture? Turn it into 30.Boom. Efficiency.
But… is faster always better?
A study from UCLA tested students watching videos at different speeds (normal, 1.5x, 2x, 2.5x).Here’s what they found:
- 1.5x and 2x speed had no negative effect on learning — as long as students paid attention.
- 2.5x speed? That’s where comprehension started to drop.
- Watching at 2x speed actually helped some students stay focused and reduced mind-wandering.
But here’s the key:
Speed-watching only works if your brain is fully engaged.If you’re half-distracted or multitasking, you’ll miss the point — fast.
Try this:
- Watch at 1.5–2x during your first pass
- Then review key parts slower (0.75x–1x) for deeper understanding
- Use active recall to make the knowledge stick
🎥 I broke this down step-by-step in a short YouTube video:
Let me know in the comments: Do you watch lectures at double speed? Or do you need things slow and steady?👇
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should you watch lectures at 2x speed? here’s what the research says
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