Good News: Watching Lectures at 2X Speed Might Not Be So Bad After All

One of the ( many ) significant social switching thrust upon manhood during the pandemic was the sudden switch to removed learning and pre - recorded lectures . While recorded lectures and online education as a whole have been around for years , the former month of the pandemicforcedmillions to take it as the new average .

Now , as many university experiment with how best to navigate in - somebody classes , many arestickingwith the praxis as a way to reduce meter spent in person and potentially allow more flexibleness with when and where educatee can learn . bookman have learned novel whoremonger to accommodate along the means , one of the most common being the hurrying up of a picture ’s playback .

In theory , speed up a video , especially for extended talk , can salvage educatee huge clod of clip . ( It also lets them breeze through whenever a prof inadvertently breaks a sloping trough show or backtracks after forgetting to make their computer mouse viewable on intro style ) . But does that public lavatory and speed come at a cost to operation ? It turns out , maybe not .

Photo: Ethan Miller (Getty Images)

That ’s according to finding in a newpaperpublished in Applied Cognitive Psychology , which found no major remainder in carrying into action between pupil who watch a lecture on normal speed versus those who take in a lecture on 1.5X or 2X f number . Under some specific circumstances , students could actually improve their examination performance after watch out a lecture on 2X speeding .

The researchers had 231 UCLA pupil watch YouTube video about real acres appraisal and the Roman Empire and gave them a inclusion trial run after . The student did this on two separate social function , regardless of the speeding of the video . The researcher found students who watched the picture on 1.5X and 2X speeds show no drop off in comprehension compared with those who see at the normal pace . So , at least within the confines of this special sketch , the data suggest students really can expend half the clip watching a picture and get the same out of it . There ’s a limit though . participant who watched video recording at 2.5X speeds or faster did see noticeable drop curtain - offs in performance .

It also did n’t matter what society students watched the normal or sped up picture when they mixed the two . Though 76 % of the answerer in the study thought watching a video first at normal speed and then sped up would run to better results , the study did n’t bear that out and saw no important difference in what order student observe their sped - up video . Those result really contradicted the students ’ expectation . While 85 % said they regularly speed up their own lecture TV , 91 % thought regular speed or 1.5X sped would lead to secure results than 2X or 2.5X speed .

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The more interesting consequence of the subject occurred when students view the same talk double at double speed . When scholar watch the speed - up videos twice , with one viewing occurring immediately before their test , the student ’ scores were higher than those who only watched a TV once .

Really those determination should n’t come as too much of a surprisal to anyone who has walked into a classroom auditorium in the excited , sweaty here and now prior to an examination . Students regularly speed cram as much fabric as potential justly before an exam . In a less anxious way , these outcome seem to mirror that effect in some way .

The investigator were also straightaway to remark the limitations of their study . Though these results work for scholarly person watch video about substantial estate and Romans , it ’s unclear if the same results would retroflex for students attempt to learn Chemistry , Art History , or any other discipline . The students also were n’t permit to pause or take banker’s bill while watching the videos , both of which are regular practices for students in the real world .

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