what is spaced repetition?
There is no skill more important that learning how to learn. That´s why you need to do it in the best way possible.
One of the best proven ways to learn something is through spaced repetition.
But what is spaced repetition?
Spaced repetition means that if you have an information that you want to remember (for instance a poem) instead of using all your studying hours in the first day, you distribute those hours over a period of time. Instead of dedicating 4 hours the first day, you can dedicate one hour the first day, another two days later, another one week later, and one more in two weeks.
So it basically means studying a particular information in split sessions.
why does spaced repetition works?
Your brain is not a computer
You have probably heard that our brain is like a computer. Well, sorry… it is not. Memory does not work like a computer. You don´t store information in a place and retrieve it at will.
A “memory” doesn’t exist in any one place in the brain, but is an emergent feature of many different parts of the brain firing in a certain way. When we learn something, it isn’t stored in a single location, but is instantly scattered across many different regions of the brain.
Neurons that fire together stick together has been said. Memories that are used stay. Memories that are not used fade away.
The forgetting curve
In the end of the XIX century, a psychologist named Hermann Ebbinghaus systematically studied memory by memorizing lists of nonsensical syllables and then recording how many times he studied each list, the time intervals between his study sessions, and how much he was able to remember.
The forgetting curve shows how the ability to remember information decays with time.
But that decay is not unstappable. You can prevent it by reviewing the information. That is precisely what spaced repetition tries to accomplish.
how to implement spaced repetition without software?
We will see later how you can implement spaced repetition with software. But you can make it work in the offline work too.
One way to do it is the Leitner system.
You set a number of stages. Each stage is represented by a box.
Every card starts out in Box 1. When you get it right, you sent it to the next box. If you get a card wrong, it goes all the way back to Box 1 – no matter where it was. This is the way to be sure that you study the most challenging things.
The last box is the end. Cards that arrive there are considered learned.
how to implement spaced repetition with software?
The most popular app for spaced repetition is Anki. Anki is free unless you use an iphone. In that case it costs 24.99.
Anki lets you create virtual cards with information. You can review them and every time you do it, decide whether you have answered correctly ( in which case it will be reviewed in a longer time) or you have not ( shortening the time tll the next review )
Not only that, you can also add images and links to the cards to make them more easy to remember.
You can download Anki here: https://apps.ankiweb.net/
Studies showing that spaced repetition works
There are many studies showing that spaced repetition works.
Herbert J. Spitzer began investigating the influence of content and test spacing on recall and retention in 1939. Although his findings were promising, they were not addressed by others for more than a generation.
Jumping ahead to 1989, in the Educational Psychology Survey, Frank N. Dempster presented a review of the scholarly literature. He examined almost 100 research. The weight of data showed that spaced repetition is a “highly effective way of enhancing learning [in] a range of situations and across many materials and procedures,” he said.
1991: Spaced repetition works well with students of all ages.
A study team at Villanova University in the United States conducted a two-part spaced learning experiment.
Part I focused on young children (preschoolers, first graders, and third graders). They discovered that when the “spacing between repeats grew,” so did recollection. The impact, however, was unrelated to age. The spacing between repeats was more important than age.
This team used college students in Part II of their study to conduct a spaced learning experiment. The outcomes were the same.
What was their conclusion? “Spaced-repetition effects in recognition are created by fundamental memory processes that are active at a very young age and undergo little development.” In layperson’s terms, spaced repetition (or dispersed practice) improves recollection for people of all ages.
Moving forward to 2016, distributed practice can help your business save money.
Organizations, according to researcher Sean Kang (Dartmouth University, USA), should leverage on spaced repetition.
According to Kang, spaced practice “may be a cost-effective method.” This is because more material is kept in the same length of time. As a consequence, learners spend less time relearning forgotten content, allowing them to devote more time to other productive learning tasks.
Distributed practice, in general, “improves the efficacy (effectiveness) and efficiency of learning.”
2017: Age and aim dependent effects of spaced repetition
While dispersed practice works for everyone, the outcomes vary depending on the age of the person and the job being taught.
Christopher D. Smith and Damian Scarf (University of Otago, New Zealand) discovered that spaced repetition is more efficient for teaching skills than language to adults. Having stated that, this instructional method enhances learning generalization for all ages.
Brain Boost with Spaced Repetition
2019: Discovering the Reasons Why Spaced Repetition Works
A team of researchers from Beijing Normal University in China analyzed scalp EEG data to gain a picture of the biological foundation for spaced repetition’s efficacy.
The researchers used spatiotemporal pattern similarity to evaluate the scalp EEG data (STPS). Spatiotemporal data analysis examines information in a specific place (spatio) during a certain time period (temporal). Large amounts of data may be examined in this way to uncover patterns using powerful computing units.
According to the findings, “greater item-specific STPS in the right frontal electrodes at 543–727 ms following stimulus initiation was linked with improved memory performance.” More crucially, under the spaced-learning condition, this STPS was greater than under the massed-learning condition.
In layman’s terms, electrical activity occurs in the brain during learning. The right frontal region of the brain showed substantial activity 543–727 milliseconds after the learning period began, according to this study. This exercise improved content retention, and spaced repetition raised the intensity of this activity.
Data illustrating how successful spaced repetition may be by 2020
The University of Leicester in the United Kingdom wants to look at the quantitative impact of dispersed practice.
They created a one-of-a-kind online application. The software may tailor a physics study material repetition timetable for each learner. Students may choose between a spaced repetition timetable and a massed repetition timetable, or they could choose not to use the app at all.
Here are the outcomes:
Students who chose space repetition had an adjusted mean exam score of 70%.
Those who favoured massed usage scored 64 percent on the adjusted mean exam.
Students who did not utilize the app at all had a 61 percent adjusted mean exam score.
According to the findings of the study, students who studied using spaced repetition performed the highest on tests.
Overall…
Spaced repetition (or dispersed practice) is a tried-and-true teaching technique backed up by more than 80 years of study.
Distributed practice is a cost-effective alternative to massed practice since it enhances student retention in the same amount of study time.
It is appropriate for students of all ages. It is more suited to skill training than language acquisition for adults.
As researchers dig more into this instrument, they discover that it stimulates neurological (brain) activity, which improves learning.